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Ciprofloxacin Oral Suspension

Pronunciation

Dosage Form: oral suspension

WARNING: SERIOUS ADVERSE REACTIONS INCLUDING TENDINITIS, TENDON RUPTURE, PERIPHERAL NEUROPATHY, CENTRAL NERVOUS SYSTEM EFFECTS AND EXACERBATION OF MYASTHENIA GRAVIS

•  Fluoroquinolones, including ciprofloxacin, have been associated with disabling and potentially irreversible serious adverse reactions that have occurred together [see WARNINGS AND PRECAUTIONS (5.1)] including:

      °  Tendinitis and tendon rupture [see WARNINGS AND PRECAUTIONS (5.2)]

      °  Peripheral neuropathy [see WARNINGS AND PRECAUTIONS (5.3)]

      °  Central nervous system effects [see WARNINGS AND PRECAUTIONS(5.4)]

•  Discontinue ciprofloxacin immediately and avoid the use of fluoroquinolones, including ciprofloxacin, in patients who experience any of these serious adverse reactions [see WARNINGS AND PRECAUTIONS (5.1)]. Fluroroquinolones, including ciprofloxacin, may exacerbate muscle weakness in patients with myasthenia gravis. Avoid ciprofloxacin in patients with known history of myasthenia gravis [see WARNINGS AND PRECAUTIONS (5.5)].

•  Because fluoroquinolones, including ciprofloxacin, have been associated with serious adverse reactions [see WARNINGS AND PRECAUTIONS (5.1 to 5.15)], reserve ciprofloxacin for use in patients who have no alternative treatment options for the following indications:

      °  Acute exacerbation of chronic bronchitis [see INDICATIONS AND USAGE (1.10)]

      °  Acute uncomplicated cystitis [see INDICATIONS AND USAGE (1.11)]

      °  Acute sinusitis [see INDICATIONS AND USAGE (1.12)]

Indications and Usage for Ciprofloxacin Oral Suspension

Skin and Skin Structure Infections

Ciprofloxacin for oral suspension is indicated in adult patients for treatment of skin and skin structure infections caused by Escherichia coli, Klebsiella pneumoniae, Enterobacter cloacae, Proteus mirabilis, Proteus vulgaris, Providencia stuartii, Morganella morganii, Citrobacter freundii, Pseudomonas aeruginosa, methicillin-susceptible Staphylococcus aureus, methicillin-susceptible Staphylococcus epidermidis, or Streptococcus pyogenes.

Bone and Joint Infections

Ciprofloxacin for oral suspension is indicated in adult patients for treatment of bone and joint infections caused by Enterobacter cloacae, Serratia marcescens, or Pseudomonas aeruginosa.

Complicated Intra-Abdominal Infections

Ciprofloxacin for oral suspension is indicated in adult patients for treatment of complicated intra-abdominal infections (used in combination with metronidazole) caused by Escherichia coli, Pseudomonas aeruginosa, Proteus mirabilis, Klebsiella pneumoniae, or Bacteroides fragilis.

Infectious Diarrhea

Ciprofloxacin for oral suspension is indicated in adult patients for treatment of infectious diarrhea caused by Escherichia coli (enterotoxigenic isolates), Campylobacter jejuni, Shigella boydii , Shigella dysenteriae, Shigella flexneri or Shigella sonnei when antibacterial therapy is indicated.

Although treatment of infections due to this organism in this organ system demonstrated a clinically significant outcome, efficacy was studied in fewer than 10 patients.

Typhoid Fever (Enteric Fever)

Ciprofloxacin for oral suspension is indicated in adult patients for treatment of typhoid fever (enteric fever) caused by Salmonella typhi. The efficacy of ciprofloxacin in the eradication of the chronic typhoid carrier state has not been demonstrated.

Uncomplicated Cervical and Urethral Gonorrhea

Ciprofloxacin for oral suspension is indicated in adult patients for treatment of uncomplicated cervical and urethral gonorrhea due to Neisseria gonorrhoeae [see WARNINGS AND PRECAUTIONS (5.16)].

Inhalational Anthrax (Post-Exposure)

Ciprofloxacin for oral suspension is indicated in adults and pediatric patients from birth to 17 years of age for inhalational anthrax (post-exposure) to reduce the incidence or progression of disease following exposure to aerosolized Bacillus anthracis.

Ciprofloxacin serum concentrations achieved in humans served as a surrogate endpoint reasonably likely to predict clinical benefit and provided the initial basis for approval of this indication.1Supportive clinical information for ciprofloxacin for anthrax post-exposure prophylaxis was obtained during the anthrax bioterror attacks of October 2001 [see CLINICAL STUDIES (14.2)].

Plague

Ciprofloxacin for oral suspension is indicated for treatment of plague, including pneumonic and septicemic plague, due to Yersinia pestis (Y. pestis) and prophylaxis for plague in adults and pediatric patients from birth to 17 years of age. Efficacy studies of ciprofloxacin could not be conducted in humans with plague for feasibility reasons. Therefore this indication is based on an efficacy study conducted in animals only [see CLINICAL STUDIES (14.3)].

Chronic Bacterial Prostatitis

Ciprofloxacin for oral suspension is indicated in adult patients for treatment of chronic bacterial prostatitis caused by Escherichia coli or Proteus mirabilis.

Lower Respiratory Tract Infections

Ciprofloxacin for oral suspension is indicated in adult patients for treatment of lower respiratory tract infections caused by Escherichia coli, Klebsiella pneumoniae, Enterobacter cloacae, Proteus mirabilis, Pseudomonas aeruginosa, Haemophilus influenzae, Haemophilus parainfluenzae, or Streptococcus pneumoniae.

Ciprofloxacin for oral suspension is not a drug of first choice in the treatment of presumed or confirmed pneumonia secondary to Streptococcus pneumoniae

Ciprofloxacin for oral suspension is indicated for the treatment of acute exacerbations of chronic bronchitis (AECB) caused by Moraxella catarrhalis.

Because fluoroquinolones, including Ciprofloxacin for oral suspension, have been associated with serious adverse reactions [see WARNINGS AND PRECAUTIONS (5.1 to 5.15)] and for some patients AECB is self-limiting, reserve Ciprofloxacin for oral suspension for treatment of AECB in patients who have no alternative treatment options.

Urinary Tract Infections

Urinary Tract Infections in Adults

Ciprofloxacin for oral suspension is indicated in adult patients for treatment of urinary tract infections caused by Escherichia coli, Klebsiella pneumoniae, Enterobacter cloacae, Serratia marcescens, Proteus mirabilis, Providencia rettgeri, Morganella morganii, Citrobacter koseri, Citrobacter freundii, Pseudomonas aeruginosa, methicillin-susceptible Staphylococcus epidermidis, Staphylococcus saprophyticus, or Enterococcus faecalis.

Acute Uncomplicated Cystitis

Ciprofloxacin for oral suspension is indicated in adult female patients for treatment of acute uncomplicated cystitis caused by Escherichia coli or Staphylococcus saprophyticus.

Because fluoroquinolones, including ciprofloxacin for oral suspension, have been associated with serious adverse reactions [see WARNINGS AND PRECAUTIONS (5.1 to 5.15)] and for some patients acute uncomplicated cystitis is self-limiting, reserve ciprofloxacin for oral suspension for treatment of acute uncomplicated cystitis in patients who have no alternative treatment options.

Complicated Urinary Tract Infection and Pyelonephritis in Pediatric Patients

Ciprofloxacin for oral suspension is indicated in pediatric patients aged one to 17 years of age for treatment of complicated urinary tract infections (cUTI) and pyelonephritis due to Escherichia coli [see USE IN SPECIFIC POPULATIONS (8.4)].

Although effective in clinical trials, ciprofloxacin for oral suspension is not a drug of first choice in the pediatric population due to an increased incidence of adverse reactions compared to controls, including reactions related to joints and/or surrounding tissues. Ciprofloxacin for oral suspension, like other fluoroquinolones, is associated with arthropathy and histopathological changes in weight-bearing joints of juvenile animals [see WARNINGS AND PRECAUTIONS (5.12), ADVERSE REACTIONS (6.1), USE IN SPECIFIC POPULATIONS (8.4) and NONCLINICAL TOXICOLOGY (13.2)].

Acute Sinusitis

Ciprofloxacin for oral suspension is indicated in adult patients for treatment of acute sinusitis caused by Haemophilus influenzae, Streptococcus pneumoniae, or Moraxella catarrhalis.

Because fluoroquinolones, including ciprofloxacin for oral suspension, have been associated with serious adverse reactions [see WARNINGS AND PRECAUTIONS (5.1 to 5.15)] and for some patients acute sinusitis is self-limiting, reserve ciprofloxacin for oral suspension for treatment of acute sinusitis in patients who have no alternative treatment options.

Usage

To reduce the development of drug-resistant bacteria and maintain the effectiveness of ciprofloxacin for oral suspension and other antibacterial drugs, ciprofloxacin for oral suspension should be used only to treat or prevent infections that are proven or strongly suspected to be caused by susceptible bacteria. When culture and susceptibility information are available, they should be considered in selecting or modifying antibacterial therapy. In the absence of such data, local epidemiology and susceptibility patterns may contribute to the empiric selection of therapy.

If anaerobic organisms are suspected of contributing to the infection, appropriate therapy should be administered. Appropriate culture and susceptibility tests should be performed before treatment in order to isolate and identify organisms causing infection and to determine their susceptibility to ciprofloxacin. Therapy with ciprofloxacin for oral suspension may be initiated before results of these tests are known; once results become available appropriate therapy should be continued.

As with other drugs, some isolates of Pseudomonas aeruginosa may develop resistance fairly rapidly during treatment with ciprofloxacin. Culture and susceptibility testing performed periodically during therapy will provide information not only on the therapeutic effect of the antimicrobial agent but also on the possible emergence of bacterial resistance.

Ciprofloxacin Oral Suspension Dosage and Administration

Ciprofloxacin for oral suspension should be administered orally as described in the appropriate Dosage Guidelines tables.

Dosage in Adults

The determination of dosage and duration for any particular patient must take into consideration the severity and nature of the infection, the susceptibility of the causative microorganism, the integrity of the patient's host-defense mechanisms, and the status of renal and hepatic function.

Table 1: Adult Dosage Guidelines

1. Generally ciprofloxacin should be continued for at least 2 days after the signs and symptoms of infection have disappeared, except for inhalational anthrax (post-exposure).

2. Used in conjunction with metronidazole.

3. Begin drug administration as soon as possible after suspected or confirmed exposure.

Infection 
Dose
Frequency
Usual Durations1
Skin and Skin Structure 
500 to 750 mg
every 12 hours
7 to 14 days
Bone and Joint 
500 to 750 mg
every 12 hours
4 to 8 weeks
Complicated Intra–Abdominal2 
500 mg
every 12 hours
7 to 14 days
Infectious Diarrhea 
500 mg
every 12 hours
5 to 7 days
Typhoid Fever 
500 mg
every 12 hours
10 days
Uncomplicated Urethral and 
Cervical Gonococcal Infections 
250 mg
single dose
single dose
Inhalational anthrax 
(post-exposure)3 
500 mg
every 12 hours
60 days
Plague3
500 to 750 mg
every 12 hours
14 days
Chronic Bacterial Prostatitis
500 mg 
every 12 hours
28 days
Lower Respiratory tract Infections
500 to 750 mg
every 12 hours
7 to 14 days
Urinary Tract Infectiond
250 to 500 mg
every 12 hours
7 to 14 days
Acute Uncomplicated Cystitis
250 mg
every 12 hours
3 days
Acute Sinusitis
500 mg
every 12 hours
10 days

Conversion of IV to Oral Dosing in Adults

Patients whose therapy is started with CIPRO IV may be switched to ciprofloxacin for oral suspension when clinically indicated at the discretion of the     physician (Table 2) [see CLINICAL PHARMACOLOGY (12.3)].

Table 2: Equivalent AUC Dosing Regimens
Ciprofloxacin Oral Dosage
Equivalent CIPRO IV Dosage
250 mg Tablet every 12 hours
200 mg intravenous every 12 hours
500 mg Tablet every 12 hours
400 mg intravenous every 12 hours
750 mg Tablet every 12 hours
400 mg intravenous every 8 hours

Dosage in Pediatric Patients

Dosing and initial route of therapy (that is, IV or oral) for cUTI or pyelonephritis should be determined by the severity of the infection. Ciprofloxacin should be administered as described in Table 3.

Table 3: Pediatric Dosage Guidelines

1. The total duration of therapy for cUTI and pyelonephritis in the clinical trial was determined by the physician. The mean duration of treatment was 11 days (range 10 to 21 days).

2. Begin drug administration as soon as possible after suspected or confirmed exposure.

3. Begin drug administration as soon as possible after suspected or confirmed exposure to Y. pestis.

Infection 
Dose
Frequency
Total Duration
Complicated Urinary Tract or Pyelonephritis (patients from 1 to 17 years of age) 
10 mg/kg to 20 mg/kg 
(maximum 750 mg per dose; not to be exceeded even in patients weighing more than 51 kg)
Every 12 hours
10 to 21 days1
Inhalational Anthrax 
(Post-Exposure)2 
15 mg/kg 
(maximum 500 mg per dose)
Every 12 hours
60 days
Plague2,3 
15 mg/kg 
(maximum 500 mg per dose)
Every 8 to 12 hours
10 to 21 days

Dosage Modifications in Patients with Renal Impairment

Ciprofloxacin is eliminated primarily by renal excretion; however, the drug is also metabolized and partially cleared through the biliary system of the liver and through the intestine. These alternative pathways of drug elimination appear to compensate for the reduced renal excretion in patients with renal impairment. Nonetheless, some modification of dosage is recommended, particularly for patients with severe renal dysfunction. Dosage guidelines for use in patients with renal impairment are shown in Table 4.

Table 4: Recommended Starting and Maintenance Doses for Adult Patients with Impaired Renal Function
Creatinine Clearance (mL/min
Dose 
> 50 
See Usual Dosage. 
30 to 50 
250 to 500 mg every 12 hours 
5 to 29 
250 to 500 mg every 18 hours 
Patients on hemodialysis or Peritoneal dialysis 
250 to 500 mg every 24 hours (after dialysis) 

When only the serum creatinine concentration is known, the following formulas may be used to estimate creatinine clearance:

Men - Creatinine clearance (mL/min) = Weight (kg) x (140–age)

                                                            72 x serum creatinine (mg/dL)

Women - 0.85 x the value calculated for men.

The serum creatinine should represent a steady state of renal function.

In patients with severe infections and severe renal impairment, a unit dose of 750 mg may be administered at the intervals noted above. Patients should be carefully monitored.

Pediatric patients with moderate to severe renal insufficiency were excluded from the clinical trial of cUTI and pyelonephritis. No information is available on dosing adjustments necessary for pediatric patients with moderate to severe renal insufficiency (that is, creatinine clearance of < 50 mL/min/1.73m2).

Important Administration Instructions

With Multivalent Cations

Administer ciprofloxacin for oral suspension at least 2 hours before or 6 hours after magnesium/aluminum antacids; polymeric phosphate binders (for example, sevelamer, lanthanum carbonate) or sucralfate; Videx®(didanosine) chewable/buffered tablets or pediatric powder for oral solution; other highly buffered drugs; or other products containing calcium, iron or zinc.

With Dairy Products

Concomitant administration of ciprofloxacin for oral suspension with dairy products (like milk or yogurt) or calcium-fortified juices alone should be avoided since decreased absorption is possible; however, ciprofloxacin for oral suspension may be taken with a meal that contains these products.

Hydration of Patients Receiving Ciprofloxacin for Oral Suspension

Assure adequate hydration of patients receiving ciprofloxacin for oral suspension to prevent the formation of highly concentrated urine. Crystalluria has been reported with quinolones.

Instruct the patient of the appropriate ciprofloxacin for oral suspension administration [see PATIENT COUNSELING INFORMATION (17)].

Directions for Reconstitution of the Ciprofloxacin Granular Blend for Oral Suspension

Ciprofloxacin for oral suspension is supplied in 5% (5 g ciprofloxacin in 100 mL) and 10% (10 g ciprofloxacin in 100 mL) strengths. Ciprofloxacin for oral suspension is composed of two components (granular blend and diluent) that must be combined prior to dispensing.

Table 5: Appropriate Dosing Volumes of the Reconstituted Oral Suspensions
Dose
5%
10%
250 mg
5 mL
2.5 mL
500 mg
10 mL
5 mL
750 mg
15 mL
7.5 mL

Preparation of the suspension

Step1:

The small bottle contains the diluent, which is clear to yellow oil. Sometimes, you may observe yellow droplets (of one of the component of diluent i.e. polysorbate -20), which should disappear on vigorous shaking. The large bottle contains the ciprofloxacin granular blend.

Step 2:

Open both bottles. Child-proof cap: Press down according to instructions on the cap while turning to the left.

Step 3:

Pour the diluent completely into the larger bottle of granular blend. Do not add water to the suspension.

Step 4:

Remove the top layer of the granular blend bottle label (to reveal the Ciprofloxacin for Oral Suspension label). Close the large bottle completely according to the directions on the cap and shake vigorously for about 30 seconds. The suspension is ready for use.

Step 5:

Write the expiration date of the re-constituted oral suspension on the bottle label.

Reconstituted product may be stored below 30°C (86°F) for 14 days. Protect from freezing.

No additions should be made to the mixed final ciprofloxacin suspension. Ciprofloxacin for oral suspension should not be administered through feeding or NG (nasogastric) tubes due to its physical characteristics.

Dosage Forms and Strengths

Oral Suspension

  • 5% Oral Suspension: 250 mg ciprofloxacin per 5 mL after reconstitution
  • 10% Oral Suspension: 500 mg ciprofloxacin per 5 mL after reconstitution

Contraindications

Hypersensitivity

Ciprofloxacin for oral suspension is contraindicated in persons with a history of hypersensitivity to ciprofloxacin, any member of the quinolone class of antibacterials, or any of the product components [see WARNINGS AND PRECAUTIONS (5.7)].

Tizanidine

Concomitant administration with tizanidine is contraindicated [see DRUG INTERACTIONS (7)].

Warnings and Precautions

Disabling and Potentially Irreversible Serious Adverse Reactions Including Tendinitis and Tendon Rupture, Peripheral Neuropathy, and Central Nervous System Effects

Fluoroquinolones, including ciprofloxacin, have been associated with disabling and potentially irreversible serious adverse reactions from different body systems that can occur together in the same patient. Commonly seen adverse reactions include tendinitis, tendon rupture, arthralgia, myalgia, peripheral neuropathy, and central nervous system effects (hallucinations, anxiety, depression, insomnia, severe headaches, and confusion). These reactions can occur within hours to weeks after starting ciprofloxacin for oral suspension. Patients of any age or without pre-existing risk factors have experienced these adverse reactions [see WARNINGS AND PRECAUTIONS (5.2, 5.3, 5.4)].

Discontinue ciprofloxacin for oral suspension immediately at the first signs or symptoms of any serious adverse reaction. In addition, avoid the use of fluoroquinolones, including ciprofloxacin, in patients who have experienced any of these serious adverse reactions associated with fluoroquinolones.

Tendinitis and Tendon Rupture

Fluoroquinolones, including ciprofloxacin, have been associated with an increased risk of tendinitis and tendon rupture in all ages [see WARNINGS AND PRECAUTIONS (5.1) and ADVERSE REACTIONS (6.2)]. This adverse reaction most frequently involves the Achilles tendon, and has also been reported with the rotator cuff (the shoulder), the hand, the biceps, the thumb, and other tendons. Tendinitis or tendon rupture can occur, within hours or days of starting ciprofloxacin for oral suspension, or as long as several months after completion of fluoroquinolone therapy. Tendinitis and tendon rupture can occur bilaterally.

The risk of developing fluoroquinolone-associated tendinitis and tendon rupture is increased in patients over 60 years of age, in patients taking corticosteroid drugs, and in patients with kidney, heart or lung transplants. Other factors that may independently increase the risk of tendon rupture include strenuous physical activity, renal failure, and previous tendon disorders such as rheumatoid arthritis. Tendinitis and tendon rupture have also occurred in patients taking fluoroquinolones who do not have the above risk factors. Discontinue ciprofloxacin for oral suspension immediately if the patient experiences pain, swelling, inflammation or rupture of a tendon. Avoid fluoroquinolones, including ciprofloxacin, in patients who have a history of tendon disorders or have experienced tendinitis or tendon rupture [see ADVERSE REACTIONS (6.2)].

Peripheral Neuropathy

Fluoroquinolones, including ciprofloxacin, have been associated with an increased risk of peripheral neuropathy. Cases of sensory or sensorimotor axonal polyneuropathy affecting small and/or large axons resulting in paresthesias, hypoesthesias, dysesthesias and weakness have been reported in patients receiving fluoroquinolones, including ciprofloxacin. Symptoms may occur soon after initiation of ciprofloxacin for oral suspension and may be irreversible in some patients [see WARNINGS AND PRECAUTIONS (5.1) and ADVERSE REACTIONS (6.1, 6.2)].

Discontinue ciprofloxacin for oral suspension immediately if the patient experiences symptoms of peripheral neuropathy including pain, burning, tingling, numbness, and/or weakness, or other alterations in sensations including light touch, pain, temperature, position sense and vibratory sensation, and/or motor strength in order to minimize the development of an irreversible condition. Avoid fluoroquinolones, including ciprofloxacin, in patients who have previously experienced peripheral neuropathy [see ADVERSE REACTIONS (6.1, 6.2)].

Central Nervous System Effects

Fluoroquinolones, including ciprofloxacin, have been associated with an increased risk of central nervous system (CNS) effects, including convulsions, increased intracranial pressure (including pseudotumor cerebri), and toxic psychosis ciprofloxacin may also cause central nervous system (CNS) events including: nervousness, agitation, insomnia, anxiety, nightmares, paranoia, dizziness, confusion, tremors, hallucinations, depression, and psychotic reactions have progressed to suicidal ideations/thoughts and self-injurious behavior such as attempted or completed suicide. These reactions may occur following the first dose. Advise patients receiving ciprofloxacin for oral suspension to inform their healthcare provider immediately if these reactions occur, discontinue the drug, and institute appropriate care. Ciprofloxacin, like other fluoroquinolones, is known to trigger seizures or lower the seizure threshold. As with all fluoroquinolones, use ciprofloxacin for oral suspension with caution in epileptic patients and patients with known or suspected CNS disorders that may predispose to seizures or lower the seizure threshold (for example, severe cerebral arteriosclerosis, previous history of convulsion, reduced cerebral blood flow, altered brain structure, or stroke), or in the presence of other risk factors that may predispose to seizures or lower the seizure threshold (for example, certain drug therapy, renal dysfunction). Use ciprofloxacin when the benefits of treatment exceed the risks, since these patients are endangered because of possible undesirable CNS side effects. Cases of status epilepticus have been reported. If seizures occur, discontinue ciprofloxacin for oral suspension [see ADVERSE REACTIONS (6.1) and DRUG INTERACTIONS (7)].

Exacerbation of Myasthenia Gravis

Fluoroquinolones, including ciprofloxacin, have neuromuscular blocking activity and may exacerbate muscle weakness in patients with myasthenia gravis. Postmarketing serious adverse reactions, including deaths and requirement for ventilatory support, have been associated with fluoroquinolone use in patients with myasthenia gravis. Avoid ciprofloxacin for oral suspension in patients with known history of myasthenia gravis [see ADVERSE REACTIONS (6.2)].

Other Serious and Sometimes Fatal Adverse Reactions

Other serious and sometimes fatal adverse reactions, some due to hypersensitivity, and some due to uncertain etiology, have been reported in patients receiving therapy with quinolones, including ciprofloxacin. These events may be severe and generally occur following the administration of multiple doses. Clinical manifestations may include one or more of the following:

  • Fever, rash, or severe dermatologic reactions (for example, toxic epidermal necrolysis, Stevens-Johnson syndrome);
  • Vasculitis; arthralgia; myalgia; serum sickness;
  • Allergic pneumonitis;
  • Interstitial nephritis; acute renal insufficiency or failure;
  • Hepatitis; jaundice; acute hepatic necrosis or failure;
  • Anemia, including hemolytic and aplastic; thrombocytopenia, including thrombotic thrombocytopenic purpura; leukopenia; agranulocytosis; pancytopenia; and/or other hematologic abnormalities.

Discontinue ciprofloxacin for oral suspension immediately at the first appearance of a skin rash, jaundice, or any other sign of hypersensitivity and supportive measures instituted [see ADVERSE REACTIONS (6.1, 6.2)].

Hypersensitivity Reactions

Serious and occasionally fatal hypersensitivity (anaphylactic) reactions, some following the first dose, have been reported in patients receiving fluoroquinolone therapy, including ciprofloxacin. Some reactions were accompanied by cardiovascular collapse, loss of consciousness, tingling, pharyngeal or facial edema, dyspnea, urticaria, and itching. Only a few patients had a history of hypersensitivity reactions. Serious anaphylactic reactions require immediate emergency treatment with epinephrine and other resuscitation measures, including oxygen, intravenous fluids, intravenous antihistamines, corticosteroids, pressor amines, and airway management, including intubation, as indicated [see ADVERSE REACTIONS (6.1)].

Hepatotoxicity

Cases of severe hepatotoxicity, including hepatic necrosis, life-threatening hepatic failure, and fatal events, have been reported with ciprofloxacin for oral suspension. Acute liver injury is rapid in onset (range 1 to 39 days), and is often associated with hypersensitivity. The pattern of injury can be hepatocellular, cholestatic, or mixed. Most patients with fatal outcomes were older than 55 years old. In the event of any signs and symptoms of hepatitis (such as anorexia, jaundice, dark urine, pruritus, or tender abdomen), discontinue treatment immediately.

There can be a temporary increase in transaminases, alkaline phosphatase, or cholestatic jaundice, especially in patients with previous liver damage, who are treated with ciprofloxacin [see ADVERSE REACTIONS (6.2, 6.3)].

Serious Adverse Reactions with Concomitant Theophylline

Serious and fatal reactions have been reported in patients receiving concurrent administration of ciprofloxacin for oral suspension and theophylline. These reactions have included cardiac arrest, seizure, status epilepticus, and respiratory failure. Instances of nausea, vomiting, tremor, irritability, or palpitation have also occurred.

Although similar serious adverse reactions have been reported in patients receiving theophylline alone, the possibility that these reactions may be potentiated by ciprofloxacin cannot be eliminated. If concomitant use cannot be avoided, monitor serum levels of theophylline and adjust dosage as appropriate [see DRUG INTERACTIONS (7)].

Clostridium difficile-Associated Diarrhea

Clostridium difficile (C. difficile)-associated diarrhea (CDAD) has been reported with use of nearly all antibacterial agents, including ciprofloxacin, and may range in severity from mild diarrhea to fatal colitis. Treatment with antibacterial agents alters the normal flora of the colon leading to overgrowth of C. difficile.

C. difficile produces toxins A and B which contribute to the development of CDAD. Hypertoxin producing isolates of C. difficile cause increased morbidity and mortality, as these infections can be refractory to antimicrobial therapy and may require colectomy. CDAD must be considered in all patients who present with diarrhea following antibacterial use. Careful medical history is necessary since CDAD has been reported to occur over two months after the administration of antibacterial agents.

If CDAD is suspected or confirmed, ongoing antibacterial use not directed against C. difficile may need to be discontinued. Appropriate fluid and electrolyte management, protein supplementation, antibacterial treatment of C. difficile, and institute surgical evaluation as clinically indicated [see ADVERSE REACTIONS (6.1)].

Prolongation of the QT Interval

Some fluoroquinolones, including ciprofloxacin, have been associated with prolongation of the QT interval on the electrocardiogram and cases of arrhythmia. Cases of torsade de pointes have been reported during postmarketing surveillance in patients receiving fluoroquinolones, including ciprofloxacin.

Avoid ciprofloxacin in patients with known prolongation of the QT interval, risk factors for QT prolongation or torsade de pointes (for example, congenital long QT syndrome, uncorrected electrolyte imbalance, such as hypokalemia or hypomagnesemia and cardiac disease, such as heart failure, myocardial infarction, or bradycardia), and patients receiving Class IA antiarrhythmic agents (quinidine, procainamide), or Class III antiarrhythmic agents (amiodarone, sotalol), tricyclic antidepressants, macrolides, and antipsychotics. Elderly patients may also be more susceptible to drug-associated effects on the QT interval [see ADVERSE REACTIONS (6.2), USE IN SPECIFIC POPULATIONS (8.5)].

Musculoskeletal Disorders in Pediatric Patients and Arthropathic Effects in Animals

Ciprofloxacin for oral suspension is indicated in pediatric patients (less than 18 years of age) only for cUTI, prevention of inhalational anthrax (post exposure), and plague [see INDICATIONS AND USAGE (1.7, 1.8, 1.11)]. An increased incidence of adverse reactions compared to controls, including reactions related to joints and/or surrounding tissues, has been observed [see ADVERSE REACTIONS (6.1)].

In pre-clinical studies, oral administration of ciprofloxacin caused lameness in immature dogs.

Histopathological examination of the weight-bearing joints of these dogs revealed permanent lesions of the cartilage. Related quinolone-class drugs also produce erosions of cartilage of weight-bearing joints and other signs of arthropathy in immature animals of various species [see USE IN SPECIFIC POPULATIONS (8.4) and NONCLINICAL TOXICOLOGY (13.2)].

Photosensitivity/Phototoxicity

Moderate to severe photosensitivity/phototoxicity reactions, the latter of which may manifest as exaggerated sunburn reactions (for example, burning, erythema, exudation, vesicles, blistering, edema) involving areas exposed to light (typically the face, "V" area of the neck, extensor surfaces of the forearms, dorsa of the hands), can be associated with the use of quinolones including ciprofloxacin after sun or UV light exposure. Therefore, avoid excessive exposure to these sources of light. Discontinue ciprofloxacin for oral suspension if phototoxicity occurs [see ADVERSE REACTIONS (6.1)].

Development of Drug Resistant Bacteria

Prescribing ciprofloxacin for oral suspension in the absence of a proven or strongly suspected bacterial infection or a prophylactic indication is unlikely to provide benefit to the patient and increases the risk of the development of drug-resistant bacteria.

Potential Risks With Concomitant Use of Drugs Metabolized by Cytochrome P450 1A2 Enzymes

Ciprofloxacin is an inhibitor of the hepatic CYP1A2 enzyme pathway. Co-administration of ciprofloxacin and other drugs primarily metabolized by CYP1A2 (for example, theophylline, methylxanthines, caffeine, tizanidine, ropinirole, clozapine, olanzapine) results in increased plasma concentrations of the co-administered drug and could lead to clinically significant pharmacodynamic adverse reactions of the co-administered drug [see DRUG INTERACTIONS (7) and CLINICAL PHARMACOLOGY (12.3)].

Interference with Timely Diagnosis of Syphilis

Ciprofloxacin has not been shown to be effective in the treatment of syphilis. Antimicrobial agents used in high dose for short periods of time to treat gonorrhea may mask or delay the symptoms of incubating syphilis. Perform a serologic test for syphilis in all patients with gonorrhea at the time of diagnosis. Perform follow-up serologic test for syphilis three months after ciprofloxacin treatment.

Crystalluria

Crystals of ciprofloxacin have been observed rarely in the urine of human subjects but more frequently in the urine of laboratory animals, which is usually alkaline [see NONCLINICAL TOXICOLOGY (13.2)]. Crystalluria related to ciprofloxacin has been reported only rarely in humans because human urine is usually acidic. Avoid alkalinity of the urine in patients receiving ciprofloxacin for oral suspension. Hydrate patients well to prevent the formation of highly concentrated urine [see DOSAGE AND ADMINISTRATION (2.4)].

Adverse Reactions

The following serious and otherwise important adverse drug reactions are discussed in greater detail in other sections of labeling:

  • Disabling and Potentially Irreversible Serious Adverse Reactions [see WARNINGS AND PRECAUTIONS (5.1)]
  • Tendinitis and Tendon Rupture [see WARNINGS AND PRECAUTIONS (5.2)]
  • Peripheral Neuropathy [see WARNINGS AND PRECAUTIONS (5.3)]
  • Central Nervous System Effects [see WARNINGS AND PRECAUTIONS (5.4)] Exacerbation of Myasthenia Gravis [see WARNINGS AND PRECAUTIONS (5.5)]
  • Other Serious and Sometimes Fatal Adverse Reactions [see WARNINGS AND PRECAUTIONS (5.6)]
  • Hypersensitivity Reactions [see WARNINGS AND PRECAUTIONS (5.7)]
  • Hepatotoxicity [see WARNINGS AND PRECAUTIONS (5.8)]
  • Serious Adverse Reactions with Concomitant Theophylline [see WARNINGS AND PRECAUTIONS (5.9)]
  • Clostridium difficile-Associated Diarrhea [see WARNINGS AND PRECAUTIONS (5.10)]
  • Prolongation of the QT Interval [see WARNINGS AND PRECAUTIONS (5.11)]
  • Musculoskeletal Disorders in Pediatric Patients [see WARNINGS AND PRECAUTIONS (5.12)]
  • Photosensitivity/Phototoxicity [see WARNINGS AND PRECAUTIONS (5.13)]
  • Development of Drug Resistant Bacteria [see WARNINGS AND PRECAUTIONS (5.14)]

Clinical Trials Experience

Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice.

Adult Patients

During clinical investigations with oral and parenteral ciprofloxacin, 49,038 patients received courses of the drug.

The most frequently reported adverse reactions, from clinical trials of all formulations, all dosages, all drug-therapy durations, and for all indications of ciprofloxacin therapy were nausea (2.5%), diarrhea (1.6%), liver function tests abnormal (1.3%), vomiting (1%), and rash (1%).

Table 6: Medically Important Adverse Reactions That Occurred In less than 1% of Ciprofloxacin Patients
System Organ Class 
Adverse Reactions 
Body as Whole 
Headache 
Abdominal Pain/Discomfort 
Pain 
Cardiovascular 
Syncope 
Angina Pectoris 
Myocardial Infarction 
Cardiopulmonary Arrest 
Tachycardia 
Hypotension 
Central Nervous System 
Restlessness 
Dizziness 
Insomnia 
Nightmares 
Hallucinations 
Paranoia 
Psychosis (toxic) 
Manic Reaction 
Irritability 
Tremor 
Ataxia 
Seizures (including Status Epilepticus) 
Malaise 
Anorexia 
Phobia 
Depersonalization 
Depression (potentially culminating in self - injurious behavior (such as suicidal ideations / thoughts and attempted or completed suicide) 
Paresthesia 
Abnormal Gait 
Migraine 
Gastrointestinal 
Intestinal Perforation 
Gastrointestinal Bleeding 
Cholestatic Jaundice 
Hepatitis 
Pancreatitis 
Hemic/Lymphatic 
Petechia 
Metabolic/Nutritional 
Hyperglycemia 
Hypoglycemia 
Musculoskeletal 
Arthralgia 
Joint Stiffness 
Muscle Weakness 
Renal/Urogenital 
Interstitial Nephritis 
Renal Failure 
Respiratory 
Dyspnea 
Laryngeal Edema 
Hemoptysis 
Bronchospasm 
Skin/Hypersensitivity 
Anaphylactic Reactions including life - threatening anaphylactic shock 
Erythema Multiforme/Stevens-Johnson Syndrome 
Exfoliative Dermatitis 
Toxic Epidermal Necrolysis 
Pruritus 
Urticaria 
Photosensitivity/Phototoxicity reaction 
Flushing 
Fever 
Angioedema 
Erythema Nodosum 
Sweating 
Special Senses 
Blurred Vision 
Disturbed Vision (chromatopsia and photopsia) 
Decreased Visual Acuity 
Diplopia 
Tinnitus 
Hearing Loss 
Bad Taste 

In randomized, double-blind controlled clinical trials comparing CIPRO tablets [500 mg two times daily (BID)] to cefuroxime axetil (250 mg to 500 mg BID) and to clarithromycin (500 mg BID) in patients with respiratory tract infections, ciprofloxacin demonstrated a CNS adverse reaction profile comparable to the control drugs.

Pediatric Patients

Short (6 weeks) and long term (1 year) musculoskeletal and neurological safety of oral/intravenous ciprofloxacin, was compared to a cephalosporin for treatment of cUTI or pyelonephritis in pediatric patients 1 to 17 years of age (mean age of 6 ± 4 years) in an international multicenter trial. The duration of therapy was 10 to 21 days (mean duration of treatment was 11 days with a range of 1 to 88 days). A total of 335 ciprofloxacin-and 349 comparator-treated patients were enrolled.

An Independent Pediatric Safety Committee (IPSC) reviewed all cases of musculoskeletal adverse reactions including abnormal gait or abnormal joint exam (baseline or treatment-emergent). Within 6 weeks of treatment initiation, the rates of musculoskeletal adverse reactions were 9.3% (31/335) in the ciprofloxacin-treated group versus 6% (21/349) in comparator-treated patients. All musculoskeletal adverse reactions occurring by 6 weeks resolved (clinical resolution of signs and symptoms), usually within 30 days of end of treatment. Radiological evaluations were not routinely used to confirm resolution of the adverse reactions. Ciprofloxacin-treated patients were more likely to report more than one adverse reaction and on more than one occasion compared to control patients. The rate of musculoskeletal adverse reactions was consistently higher in the ciprofloxacin group compared to the control group across all age subgroups. At the end of 1 year, the rate of these adverse reactions reported at any time during that period was 13.7% (46/335) in the ciprofloxacin-treated group versus 9.5% (33/349) in the comparator-treated patients (Table 7).

Table 7: Musculoskeletal Adverse Reactions1 as Assessed by the IPSC

1. Included: arthralgia, abnormal gait, abnormal joint exam, joint sprains, leg pain, back pain, arthrosis, bone pain, pain, myalgia, arm pain, and decreased range of motion in a joint (knee, elbow, ankle, hip, wrist, and shoulder)

2. The study was designed to demonstrate that the arthropathy rate for the ciprofloxacin group did not exceed that of the control group by more than + 6%. At both the 6 week and 1 year evaluations, the 95% confidence interval indicated that it could not be concluded that the ciprofloxacin group had findings comparable to the control group.


Ciprofloxacin 
Comparator
All Patients (within 6 weeks) 
31/335 (9.3%)
21/349 (6%)
95% Confidence Interval2 
(-0.8%, +7.2%)
Age Group 

12 months < 24 months 
1/36 (2.8%)
0/41
2 years < 6 years 
5/124 (4%)
3/118 (2.5%)
6 years < 12 years 
18/143 (12.6%)
12/153 (7.8%)
12 years to 17 years 
7/32 (21.9%)
6/37 (16.2 %)


All Patients (within 1 year) 
46/335 (13.7%)
33/349 (9.5%)
95% Confidence Interval1 
(-0.6%, + 9.1%)

The incidence rates of neurological adverse reactions within 6 weeks of treatment initiation were 3% (9/335) in the ciprofloxacin group versus 2% (7/349) in the comparator group and included dizziness, nervousness, insomnia, and somnolence.

In this trial, the overall incidence rates of adverse reactions within 6 weeks of treatment initiation were 41% (138/335) in the ciprofloxacin group versus 31% (109/349) in the comparator group. The most frequent adverse reactions were gastrointestinal: 15% (50/335) of ciprofloxacin patients compared to 9% (31/349) of comparator patients. Serious adverse reactions were seen in 7.5% (25/335) of ciprofloxacin-treated patients compared to 5.7% (20/349) of control patients. Discontinuation of drug due to an adverse reaction was observed in 3% (10/335) of ciprofloxacin-treated patients versus 1.4% (5/349) of comparator patients. Other adverse reactions that occurred in at least 1% of ciprofloxacin patients were diarrhea 4.8%, vomiting 4.8%, abdominal pain 3.3%, dyspepsia 2.7%, nausea 2.7%, fever 2.1%, asthma 1.8% and rash 1.8%.

Short-term safety data for ciprofloxacin was also collected in a randomized, double-blind clinical trial for the treatment of acute pulmonary exacerbations in cystic fibrosis patients (ages 5 to 17 years). Sixty seven patients received CIPRO IV 10 mg/kg/dose every 8 hours for one week followed by CIPRO tablets 20 mg/kg/dose every 12 hours to complete 10 to 21 days treatment and 62 patients received the combination of ceftazidime intravenous 50 mg/kg/dose every 8 hours and tobramycin intravenous 3 mg/kg/dose every 8 hours for a total of 10 to 21 days. Periodic musculoskeletal assessments were conducted by treatment-blinded examiners. Patients were followed for an average of 23 days after completing treatment (range 0 to 93 days). Musculoskeletal adverse reactions were reported in 22% of the patients in the ciprofloxacin group and 21% in the comparison group. Decreased range of motion was reported in 12% of the subjects in the ciprofloxacin group and 16% in the comparison group. Arthralgia was reported in 10% of the patients in the ciprofloxacin group and 11% in the comparison group. Other adverse reactions were similar in nature and frequency between treatment arms. The efficacy of ciprofloxacin for the treatment of acute pulmonary exacerbations in pediatric cystic fibrosis patients has not been established.

In addition to the adverse reactions reported in pediatric patients in clinical trials, it should be expected that adverse reactions reported in adults during clinical trials or postmarketing experience may also occur in pediatric patients.

Postmarketing Experience

The following adverse reactions have been reported from worldwide marketing experience with fluoroquinolones, including ciprofloxacin. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure (Table 8).

Table 8: Postmarketing Reports of Adverse Drug Reactions
System Organ Class 
Adverse Reactions 
Cardiovascular 
QT prolongation 
Torsade de Pointes 
Vasculitis and ventricular arrhythmia 
Central Nervous System 
Hypertonia 
Myasthenia 
Exacerbation of myasthenia gravis 
Peripheral neuropathy 
Polyneuropathy 
Twitching 
Eye Disorders 
Nystagmus 
Gastrointestinal 
Pseudomembranous colitis 
Hemic/Lymphatic 
Pancytopenia (life threatening or fatal outcome) 

Methemoglobinemia 
Hepatobiliary 
Hepatic failure (including fatal cases) 
Infections and Infestations 
Candidiasis (oral, gastrointestinal, vaginal) 
Investigations 
Prothrombin time prolongation or decrease 
Cholesterol elevation (serum) 
Potassium elevation (serum) 
Musculoskeletal 
Myalgia 
Myoclonus 
Tendinitis 
Tendon rupture 
Psychiatric Disorders 
Agitation 
Confusion 
Delirium 
Skin/Hypersensitivity 
Acute generalize exanthematous pustulosis (AGEP) 
Fixed eruption 
Serum sickness-like reaction 
Special Senses 
Anosmia 
Hyperesthesia 
Hypesthesia 
Taste loss 

Adverse Laboratory Changes

Changes in laboratory parameters while on ciprofloxacin are listed below:

Hepatic –Elevations of ALT (SGPT), AST (SGOT), alkaline phosphatase, LDH, serum bilirubin.

Hematologic–Eosinophilia, leukopenia, decreased blood platelets, elevated blood platelets, pancytopenia.

Renal–Elevations of serum creatinine, BUN, crystalluria, cylindruria, and hematuria have been reported.

Other changes occurring were: elevation of serum gammaglutamyl transferase, elevation of serum amylase, reduction in blood glucose, elevated uric acid, decrease in hemoglobin, anemia, bleeding diathesis, increase in blood monocytes, and leukocytosis.

Drug Interactions

Ciprofloxacin is an inhibitor of human cytochrome P450 1A2 (CYP1A2) mediated metabolism. Co-administration of ciprofloxacin with other drugs primarily metabolized by CYP1A2 results in increased plasma concentrations of these drugs and could lead to clinically significant adverse events of the co-administered drug.

Table 9: Drugs That are Affected by and Affecting Ciprofloxacin
Drugs That are Affected by Ciprofloxacin 
Drug(s
Recommendation
Comments
Tizanidine 
Contraindicated
Concomitant administration of tizanidine and  ciprofloxacin is contraindicated due to the  potentiation of hypotensive and sedative effects of  tizanidine [see CONTRAINDICATIONS (4.2)]
Theophylline 
Avoid Use 
(Plasma Exposure Likely to be 
Increased and Prolonged)
Concurrent administration of ciprofloxacin with  theophylline may result in increased risk of a patient  developing central nervous system (CNS) or other  adverse reactions. If concomitant use cannot be  avoided, monitor serum levels of theophylline and  adjust dosage as appropriate. [see WARNINGS AND  PRECAUTIONS (5.9)].
Drugs Known to Prolong QT Interval 
Avoid Use
Ciprofloxacin may further prolong the QT interval in  patients receiving drugs known to prolong the QT  interval (for example, class IA or III antiarrhythmics,  tricyclic antidepressants, macrolides, antipsychotics)  [see WARNINGS AND PRECAUTIONS  (5.11) and USE IN SPECIFIC POPULATIONS (8.5)].
Oral antidiabetic drugs 
Use with caution Glucose-lowering 
effect potentiated
Hypoglycemia sometimes severe has been reported  when ciprofloxacin and oral antidiabetic agents,  mainly sulfonylureas (for example, glyburide,  glimepiride), were co-administered, presumably by  intensifying the action of the oral antidiabetic agent.  Fatalities have been reported. Monitor blood glucose  when ciprofloxacin is co-administered with oral  antidiabetic drugs. [see ADVERSE REACTIONS (6.1)].
Phenytoin 
Use with caution 
Altered serum levels of 
phenytoin (increased and 
decreased)
To avoid the loss of seizure control associated with 
decreased phenytoin levels and to prevent phenytoin 
overdose-related adverse reactions upon 
ciprofloxacin discontinuation in patients receiving 
both agents, monitor phenytoin therapy, including 
phenytoin serum concentration during and shortly 
after co-administration of ciprofloxacin with phenytoin. 
Cyclosporine 
Use with caution 
(transient elevations in serum 
creatinine)
Monitor renal function (in particular serum 
creatinine) when ciprofloxacin is co-administered 
with cyclosporine. 
Anti-coagulant drugs 
Use with caution 
(Increase in anticoagulant 
effect)
The risk may vary with the underlying infection, age 
and general status of the patient so that the 
contribution of ciprofloxacin to the increase in INR 
(international normalized ratio) is difficult to assess. 
Monitor prothrombin time and INR frequently during 
and shortly after co-administration of ciprofloxacin 
with an oral anti-coagulant (for example, warfarin). 
Methotrexate 
Use with caution 
Inhibition of methotrexate renal 
tubular transport potentially 
leading to increased 
methotrexate plasma levels
Potential increase in the risk of methotrexate 
associated toxic reactions. Therefore, carefully 
monitor patients under methotrexate therapy when 
concomitant ciprofloxacin therapy is indicated. 
Ropinirole 
Use with caution
Monitoring for ropinirole-related adverse reactions  and appropriate dose adjustment of ropinirole is  recommended during and shortly after co- administration with ciprofloxacin [see WARNINGS  AND PRECAUTIONS (5.16)].
Clozapine 
Use with caution
Careful monitoring of clozapine associated adverse 
reactions and appropriate adjustment of clozapine 
dosage during and shortly after co-administration 
with ciprofloxacin are advised. 
NSAIDs 
Use with caution
Non-steroidal anti-inflammatory drugs (but not acetyl 
salicylic acid) in combination of very high doses of 
quinolones have been shown to provoke convulsions 
in pre-clinical studies and in postmarketing. 
Sildenafil 
Use with caution Two-fold increase in exposure
Monitor for sildenafil toxicity (see CLINICAL  PHARMACOLOGY 12.3).
Duloxetine 
Avoid Use
Five-fold increase in duloxetine exposure
If unavoidable, monitor for duloxetine toxicity 
Caffeine/Xanthine 
Derivatives 
Use with caution
Reduced clearance resulting in 
elevated levels and prolongation 
of serum half-life
Ciprofloxacin inhibits the formation of paraxanthine 
after caffeine administration (or pentoxifylline 
containing products). Monitor for xanthine toxicity 
and adjust dose as necessary. 
Drug(sAffecting Pharmacokinetics of Ciprofloxacin
Antacids, Sucralfate, Multivitamins and Other Products 
Containing Multivalent Cations (magnesium/aluminum 
antacids; polymeric phosphate binders (for example, 
sevelamer, lanthanum carbonate); sucralfate; Videx® 
(didanosine) chewable/buffered tablets or pediatric powder; 
other highly buffered drugs; or products containing 
calcium, iron, or zinc and dairy products) 
Ciprofloxacin should be taken at  least two hours before or six  hours after Multivalent cation- containing products  administration [see DOSAGE  AND ADMINISTRATION (2.4)]. Decrease ciprofloxacin absorption, resulting in lower 
serum and urine levels 
Probenecid 
Use with caution (interferes 
with renal tubular secretion of 
ciprofloxacin and increases 
ciprofloxacin serum levels)
Potentiation of ciprofloxacin toxicity may occur. 

USE IN SPECIFIC POPULATIONS

Pregnancy

Pregnancy Category C

There are no adequate and well-controlled studies in pregnant women. Ciprofloxacin for oral suspension should not be used during pregnancy unless the potential benefit justifies the potential risk to both fetus and mother. An expert review of published data on experiences with ciprofloxacin use during pregnancy by TERIS–the Teratogen Information System–concluded that therapeutic doses during pregnancy are unlikely to pose a substantial teratogenic risk (quantity and quality of data=fair), but the data are insufficient to state that there is no risk.2

A controlled prospective observational study followed 200 women exposed to fluoroquinolones (52.5% exposed to ciprofloxacin and 68% first trimester exposures) during gestation.3In utero exposure to fluoroquinolones during embryogenesis was not associated with increased risk of major malformations. The reported rates of major congenital malformations were 2.2% for the fluoroquinolone group and 2.6% for the control group (background incidence of major malformations is 1 to 5%). Rates of spontaneous abortions, prematurity and low birth weight did not differ between the groups and there were no clinically significant musculoskeletal dysfunctions up to one year of age in the ciprofloxacin exposed children.

Another prospective follow-up study reported on 549 pregnancies with fluoroquinolone exposure (93% first trimester exposures).4There were 70 ciprofloxacin exposures, all within the first trimester. The malformation rates among live-born babies exposed to ciprofloxacin and to fluoroquinolones overall were both within background incidence ranges. No specific patterns of congenital abnormalities were found. The study did not reveal any clear adverse reactions due to in utero exposure to ciprofloxacin.

No differences in the rates of prematurity, spontaneous abortions, or birth weight were seen in women exposed to ciprofloxacin during pregnancy.2, 3However, these small postmarketing epidemiology studies, of which most experience is from short term, first trimester exposure, are insufficient to evaluate the risk for less common defects or to permit reliable and definitive conclusions regarding the safety of ciprofloxacin in pregnant women and their developing fetuses.

Reproduction studies have been performed in rats and mice using oral doses up to 100 mg/kg (0.6 and 0.3 times the maximum daily human dose based upon body surface area, respectively) and have revealed no evidence of harm to the fetus due to ciprofloxacin. In rabbits, oral ciprofloxacin dose levels of 30 and 100 mg/kg (approximately 0.4-and 1.3-times the highest recommended therapeutic dose based upon body surface area) produced gastrointestinal toxicity resulting in maternal weight loss and an increased incidence of abortion, but no teratogenicity was observed at either dose level. After intravenous administration of doses up to 20 mg/kg (approximately 0.3-times the highest recommended therapeutic dose based upon body surface area), no maternal toxicity was produced and no embryotoxicity or teratogenicity was observed.

Nursing Mothers

Ciprofloxacin is excreted in human milk. The amount of ciprofloxacin absorbed by the nursing infant is unknown. Because of the potential risk of serious adverse reactions (including articular damage) in infants nursing from mothers taking ciprofloxacin for oral suspension, a decision should be made whether to discontinue nursing or to discontinue the drug, taking into account the importance of the drug to the mother.

Pediatric Use

Although effective in clinical trials, ciprofloxacin is not a drug of first choice in the pediatric population due to an increased incidence of adverse reactions compared to controls. Quinolones, including ciprofloxacin, cause arthropathy in juvenile animals [see WARNINGS AND PRECAUTIONS (5.12) and NONCLINICAL TOXICOLOGY (13.2)].

Complicated Urinary Tract Infection and Pyelonephritis

Ciprofloxacin for oral suspension is indicated for the treatment of cUTI and pyelonephritis due to Escherichia coli in pediatric patients 1 to 17 years of age. Although effective in clinical trials, ciprofloxacin is not a drug of first choice in the pediatric population due to an increased incidence of adverse reactions compared to the controls, including events related to joints and/or surrounding tissues [see ADVERSE REACTIONS (6.1) and CLINICAL STUDIES (14.1)].

Inhalational Anthrax (Post-Exposure)

Ciprofloxacin for oral suspension is indicated in pediatric patients from birth to 17 years of age, for inhalational anthrax (post-exposure). The risk-benefit assessment indicates that administration of ciprofloxacin to pediatric patients is appropriate [see DOSAGE AND ADMINISTRATION (2.2) and CLINICAL STUDIES (14.2)].

Plague

Ciprofloxacin for oral suspension is indicated in pediatric patients from birth to 17 years of age, for treatment of plague, including pneumonic and septicemic plague due to Yersinia pestis (Y. pestis) and prophylaxis for plague. Efficacy studies of ciprofloxacin could not be conducted in humans with pneumonic plague for feasibility reasons. Therefore, approval of this indication was based on an efficacy study conducted in animals. The risk-benefit assessment indicates that administration of ciprofloxacin to pediatric patients is appropriate [see INDICATIONS AND USAGE (1.8), DOSAGE AND ADMINISTRATION (2.2) and CLINICAL STUDIES (14.3)].

Geriatric Use

Geriatric patients are at increased risk for developing severe tendon disorders including tendon rupture when being treated with a fluoroquinolone such as ciprofloxacin. This risk is further increased in patients receiving concomitant corticosteroid therapy. Tendinitis or tendon rupture can involve the Achilles, hand, shoulder, or other tendon sites and can occur during or after completion of therapy; cases occurring up to several months after fluoroquinolone treatment have been reported. Caution should be used when prescribing ciprofloxacin to elderly patients especially those on corticosteroids. Patients should be informed of this potential adverse reaction and advised to discontinue ciprofloxacin for oral suspension and contact their healthcare provider if any symptoms of tendinitis or tendon rupture occur. [see BOXED WARNING, WARNINGS AND PRECAUTIONS (5.2), and ADVERSE REACTIONS (6.2)].

In a retrospective analysis of 23 multiple-dose controlled clinical trials of ciprofloxacin encompassing over 3500 ciprofloxacin-treated patients, 25% of patients were greater than or equal to 65 years of age and 10% were greater than or equal to 75 years of age. No overall differences in safety or effectiveness were observed between these subjects and younger subjects, and other reported clinical experience has not identified differences in responses between the elderly and younger patients, but greater sensitivity of some older individuals on any drug therapy cannot be ruled out. Ciprofloxacin is known to be substantially excreted by the kidney, and the risk of adverse reactions may be greater in patients with impaired renal function. No alteration of dosage is necessary for patients greater than 65 years of age with normal renal function. However, since some older individuals experience reduced renal function by virtue of their advanced age, care should be taken in dose selection for elderly patients, and renal function monitoring may be useful in these patients [see DOSAGE AND ADMINISTRATION (2.3) and CLINICAL PHARMACOLOGY (12.3)].

In general, elderly patients may be more susceptible to drug-associated effects on the QT interval. Therefore, precaution should be taken when using ciprofloxacin with concomitant drugs that can result in prolongation of the QT interval (for example, class IA or class III antiarrhythmics) or in patients with risk factors for torsade de pointes (for example, known QT prolongation, uncorrected hypokalemia) [see WARNINGS AND PRECAUTIONS (5.11)].

Renal Impairment

Ciprofloxacin is eliminated primarily by renal excretion; however, the drug is also metabolized and partially cleared through the biliary system of the liver and through the intestine. These alternative pathways of drug elimination appear to compensate for the reduced renal excretion in patients with renal impairment. Nonetheless, some modification of dosage is recommended, particularly for patients with severe renal dysfunction [see DOSAGE AND ADMINISTRATION (2.3) and CLINICAL PHARMACOLOGY (12.3)].

Hepatic Impairment

In preliminary studies in patients with stable chronic liver cirrhosis, no significant changes in ciprofloxacin pharmacokinetics have been observed. The pharmacokinetics of ciprofloxacin in patients with acute hepatic insufficiency, have not been studied.

Overdosage

In the event of acute overdosage, reversible renal toxicity has been reported in some cases. Empty the stomach by inducing vomiting or by gastric lavage. Observe the patient carefully and give supportive treatment, including monitoring of renal function, urinary pH and acidify, if required, to prevent crystalluria and administration of magnesium, aluminum, or calcium containing antacids which can reduce the absorption of ciprofloxacin. Adequate hydration must be maintained. Only a small amount of ciprofloxacin (less than 10%) is removed from the body after hemodialysis or peritoneal dialysis.

Ciprofloxacin Oral Suspension Description

Ciprofloxacin for oral suspension is a synthetic antimicrobial agent for oral administration.

Ciprofloxacin is 1-cyclopropyl-6-fluoro-1,4-dihydro-4-oxo-7-(1-piperazinyl)-3-quinoline carboxylic acid. Its empirical formula is C17H18FN3O3 and its molecular weight is 331.4. It is a faintly yellowish to light yellow crystalline substance and its chemical structure is as follows:

Ciprofloxacin for oral suspension is available in 5% (5 g ciprofloxacin in 100 mL) and 10% (10 g ciprofloxacin in 100 mL) strengths. Ciprofloxacin Oral Suspension is a light yellow to yellow colored suspension which may contain yellow droplets. It is composed of ciprofloxacin granular blend and diluent which are mixed prior to dispensing [see DOSAGE AND ADMINISTRATION (2.5)]. The components of the suspension have the following compositions:

  • Granular blend - ciprofloxacin, ammonium glycyrrhizate, amino methacrylate copolymer, colloidal silicon dioxide, croscarmellose sodium, flavor novamint mentholyptus, flavor strawberry, hypromellose, microcrystalline cellulose, sucralose, sucrose and talc.
  • Diluent - medium chain triglyceride and polysorbate 20.

Ciprofloxacin Oral Suspension - Clinical Pharmacology

Mechanism of Action

Ciprofloxacin is a member of the fluoroquinolone class of antibacterial agents [see Microbiology (12.4)].

Pharmacokinetics

Absorption

The absolute bioavailability of ciprofloxacin when given as an oral tablet is approximately 70% with no substantial loss by first pass metabolism. Ciprofloxacin maximum serum concentrations and area under the curve are shown in the chart for the 250 mg to 1000 mg dose range (Table 10).

Table 10: Maximum Serum Concentrations and Areas Under the Curve
Dose (mg)
Maximum Serum Concentration
(mcg/mL)
Area Under Curve (AUC)
(mcghr/mL)
250
1.2
4.8
500
2.4
11.6
750
4.3
20.2
1000
5.4
30.8

Maximum serum concentrations are attained 1 to 2 hours after oral dosing. Mean concentrations 12 hours after dosing with 250, 500, or 750 mg are 0.1, 0.2, and 0.4 mcg/mL, respectively. The serum elimination half-life in subjects with normal renal function is approximately 4 hours. Serum concentrations increase proportionately with doses up to 1000 mg.

A 500 mg oral dose given every 12 hours has been shown to produce an area under the serum concentration time curve (AUC) equivalent to that produced by an intravenous infusion of 400 mg ciprofloxacin given over 60 minutes every 12 hours. A 750 mg oral dose given every 12 hours has been shown to produce an AUC at steady-state equivalent to that produced by an intravenous infusion of 400 mg given over 60 minutes every 8 hours. A 750 mg oral dose results in a Cmax similar to that observed with a 400 mg intravenous dose. A 250 mg oral dose given every 12 hours produces an AUC equivalent to that produced by an infusion of 200 mg ciprofloxacin given every 12 hours (Table 11).

Table 11: Steady-state Pharmacokinetic Parameters Following Multiple Oral and IV Doses

1. AUC 012h

2. AUC 24h = AUC 012hx 2

3. AUC 24h = AUC 08hx 3

Parameters 
500 mg
400 mg
750 mg
400 mg

every 12 hours, orally
every 12 hours, intravenous
every 12 hours, orally
every 8 hours, intravenous
AUC (mcg•hr/mL) 
13.71
12.71
31.62
32.93
Cmax (mcg/mL) 
2.97
4.56
3.59
4.07

Food:

When CIPRO Tablet is given concomitantly with food, there is a delay in the absorption of the drug, resulting in peak concentrations that occur closer to 2 hours after dosing rather than 1 hour whereas there is no delay observed when ciprofloxacin for oral suspension is given with food. The overall absorption of ciprofloxacin for oral suspension, however, is not substantially affected. The pharmacokinetics of ciprofloxacin given as the suspension are also not affected by food. Avoid concomitant administration of ciprofloxacin for oral suspension with dairy products (like milk or yogurt) or calcium-fortified juices alone since decreased absorption is possible; however, ciprofloxacin for oral suspension may be taken with a meal that contains these products.

With oral administration, a 500 mg dose, given as 10 mL of the 5% ciprofloxacin for oral suspension (containing 250 mg ciprofloxacin/5mL) is bioequivalent to the 500 mg tablet. A 10 mL volume of the 5% ciprofloxacin for oral suspension (containing 250 mg ciprofloxacin/5mL) is bioequivalent to a 5 mL volume of the 10% ciprofloxacin for oral suspension (containing 500 mg ciprofloxacin/5mL).

Distribution

The binding of ciprofloxacin to serum proteins is 20% to 40% which is not likely to be high enough to cause significant protein binding interactions with other drugs.

After oral administration, ciprofloxacin is widely distributed throughout the body. Tissue concentrations often exceed serum concentrations in both men and women, particularly in genital tissue including the prostate. Ciprofloxacin is present in active form in the saliva, nasal and bronchial secretions, mucosa of the sinuses, sputum, skin blister fluid, lymph, peritoneal fluid, bile, and prostatic secretions. Ciprofloxacin has also been detected in lung, skin, fat, muscle, cartilage, and bone. The drug diffuses into the cerebrospinal fluid (CSF); however, CSF concentrations are generally less than 10% of peak serum concentrations. Low levels of the drug have been detected in the aqueous and vitreous humors of the eye.

Metabolism

Four metabolites have been identified in human urine which together account for approximately 15% of an oral dose. The metabolites have antimicrobial activity, but are less active than unchanged ciprofloxacin. Ciprofloxacin is an inhibitor of human cytochrome P450 1A2 (CYP1A2) mediated metabolism. Co-administration of ciprofloxacin with other drugs primarily metabolized by CYP1A2 results in increased plasma concentrations of these drugs and could lead to clinically significant adverse events of the co-administered drug [see CONTRAINDICATIONS (4.2), WARNINGS AND PRECAUTIONS (5.9, 5.15), and DRUG INTERACTIONS (7)].

Excretion

The serum elimination half-life in subjects with normal renal function is approximately 4 hours.

Approximately 40 to 50% of an orally administered dose is excreted in the urine as unchanged drug. After a 250 mg oral dose, urine concentrations of ciprofloxacin usually exceed 200 mcg/mL during the first two hours and are approximately 30 mcg/mL at 8 to 12 hours after dosing. The urinary excretion of ciprofloxacin is virtually complete within 24 hours after dosing. The renal clearance of ciprofloxacin, which is approximately 300 mL/minute, exceeds the normal glomerular filtration rate of 120 mL/minute. Thus, active tubular secretion would seem to play a significant role in its elimination. Co-administration of probenecid with ciprofloxacin results in about a 50% reduction in the ciprofloxacin renal clearance and a 50% increase in its concentration in the systemic circulation.

Although bile concentrations of ciprofloxacin are several fold higher than serum concentrations after oral dosing, only a small amount of the dose administered is recovered from the bile as unchanged drug. An additional 1% to 2% of the dose is recovered from the bile in the form of metabolites. Approximately 20% to 35% of an oral dose is recovered from the feces within 5 days after dosing. This may arise from either biliary clearance or transintestinal elimination.

Specific Populations

Elderly:

Pharmacokinetic studies of the oral (single dose) and intravenous (single and multiple dose) forms of ciprofloxacin indicate that plasma concentrations of ciprofloxacin are higher in elderly subjects (older than 65 years) as compared to young adults. Although the Cmax is increased 16% to 40%, the increase in mean AUC is approximately 30%, and can be at least partially attributed to decreased renal clearance in the elderly. Elimination half-life is only slightly (~20%) prolonged in the elderly. These differences are not considered clinically significant [see USE IN SPECIFIC POPULATIONS (8.5)].

Renal Impairment:

In patients with reduced renal function, the half-life of ciprofloxacin is slightly prolonged. Dosage adjustments may be required [see USE IN SPECIFIC POPULATIONS (8.6) and DOSAGE AND ADMINISTRATION (2.3)].

Hepatic Impairment:

In preliminary studies in patients with stable chronic liver cirrhosis, no significant changes in ciprofloxacin pharmacokinetics have been observed. The kinetics of ciprofloxacin in patients with acute hepatic insufficiency, have not been fully studied.

Pediatrics:

Following a single oral dose of 10 mg/kg ciprofloxacin for oral suspension to 16 children ranging in age from 4 months to 7 years, the mean Cmax was 2.4 mcg/mL (range: 1.5 mcg/mL to 3.4 mcg/mL) and the mean AUC was 9.2 mcg*hr/mL (range: 5.8 mcg*hr/mL to 14.9 mcg*h/mL). There was no apparent age-dependence, and no notable increase in Cmax or AUC upon multiple dosing (10 mg/kg three times a day). In children with severe sepsis who were given CIPRO IV (10 mg/kg as a 1-hour intravenous infusion), the mean Cmax was 6.1 mcg/mL (range: 4.6 mcg/mL to 8.3 mcg/mL) in 10 children less than 1 year of age; and 7.2 mcg/mL (range: 4.7 mcg/mL to 11.8 mcg/mL) in 10 children between 1 year and 5 years of age. The AUC values were 17.4 mcg*hr/mL (range: 11.8 mcg*hr/mL to 32 mcg*hr/mL) and 16.5 mcg*hr/mL (range: 11 mcg*hr/mL to 23.8 mcg*hr/mL) in the respective age groups. These values are within the range reported for adults at therapeutic doses. Based on population pharmacokinetic analysis of pediatric patients with various infections, the predicted mean half-life in children is approximately 4 hours –5 hours, and the bioavailability of the oral suspension is approximately 60%.

Drug-Drug Interactions

Antacids:

Concurrent administration of antacids containing magnesium hydroxide or aluminum hydroxide may reduce the bioavailability of ciprofloxacin by as much as 90% [see DOSAGE AND ADMINISTRATION (2.4) and DRUG INTERACTIONS (7)].

Histamine H2-receptor antagonists:

Histamine H2-receptor antagonists appear to have no significant effect on the bioavailability of ciprofloxacin.

Metronidazole:

The serum concentrations of ciprofloxacin and metronidazole were not altered when these two drugs were given concomitantly.

Tizanidine:

In a pharmacokinetic study, systemic exposure of tizanidine (4 mg single dose) was significantly increased (Cmax 7-fold, AUC 10-fold) when the drug was given concomitantly with ciprofloxacin for oral suspension (500 mg twice a day for 3 days). Concomitant administration of tizanidine and ciprofloxacin is contraindicated due to the potentiation of hypotensive and sedative effects of tizanidine [see CONTRAINDICATIONS (4.2)].

Ropinirole:

In a study conducted in 12 patients with Parkinson's disease who were administered 6 mg ropinirole once daily with 500 mg ciprofloxacin twice-daily, the mean Cmax and mean AUC of ropinirole were increased by 60% and 84%, respectively. Monitoring for ropinirole-related adverse reactions and appropriate dose adjustment of ropinirole is recommended during and shortly after co-administration with ciprofloxacin [see WARNINGS AND PRECAUTIONS (5.9)].

Clozapine:

Following concomitant administration of 250 mg ciprofloxacin with 304 mg clozapine for 7 days, serum concentrations of clozapine and N-desmethylclozapine were increased by 29% and 31%, respectively. Careful monitoring of clozapine associated adverse reactions and appropriate adjustment of clozapine dosage during and shortly after co-administration with ciprofloxacin are advised.

Sildenafil:

Following concomitant administration of a single oral dose of 50 mg sildenafil with 500 mg ciprofloxacin to healthy subjects, the mean Cmax and mean AUC of sildenafil were both increased approximately two-fold. Use sildenafil with caution when co-administered with ciprofloxacin due to the expected two-fold increase in the exposure of sildenafil upon co-administration of ciprofloxacin.

Duloxetine:

In clinical studies it was demonstrated that concomitant use of duloxetine with strong inhibitors of the CYP450 1A2 isozyme such as fluvoxamine, may result in a 5-fold increase in mean AUC and a 2.5-fold increase in mean Cmax of duloxetine.

Lidocaine:

In a study conducted in 9 healthy volunteers, concomitant use of 1.5 mg/kg IV lidocaine with ciprofloxacin 500 mg twice daily resulted in an increase of lidocaine Cmax and AUC by 12% and 26%, respectively. Although lidocaine treatment was well tolerated at this elevated exposure, a possible interaction with ciprofloxacin and an increase in adverse reactions related to lidocaine may occur upon concomitant administration.

Metoclopramide:

Metoclopramide significantly accelerates the absorption of oral ciprofloxacin resulting in a shorter time to reach maximum plasma concentrations. No significant effect was observed on the bioavailability of ciprofloxacin.

Omeprazole:

When ciprofloxacin was administered as a single 1000 mg dose concomitantly with omeprazole (40 mg once daily for three days) to 18 healthy volunteers, the mean AUC and Cmax of ciprofloxacin were reduced by 20% and 23%, respectively. The clinical significance of this interaction has not been determined.

Microbiology

Mechanism of Action

The bactericidal action of ciprofloxacin results from inhibition of the enzymes topoisomerase II (DNA gyrase) and topoisomerase IV (both Type II topoisomerases), which are required for bacterial DNA replication, transcription, repair, and recombination.

Mechanism of Resistance

The mechanism of action of fluoroquinolones, including ciprofloxacin, is different from that of penicillins, cephalosporins, aminoglycosides, macrolides, and tetracyclines; therefore, microorganisms resistant to these classes of drugs may be susceptible to ciprofloxacin. Resistance to fluoroquinolones occurs primarily by either mutations in the DNA gyrases, decreased outer membrane permeability, or drug efflux. In vitro resistance to ciprofloxacin develops slowly by multiple step mutations. Resistance to ciprofloxacin due to spontaneous mutations occurs at a general frequency of between < 10-9to 1x10-6.

Cross Resistance

There is no known cross-resistance between ciprofloxacin and other classes of antimicrobials.

Ciprofloxacin has been shown to be active against most isolates of the following bacteria, both in vitro and in clinical infections [see INDICATIONS AND USAGE (1)].

Gram-positive bacteria:

Bacillus anthracis 

Enterococcus faecalis

Staphylococcus aureus (methicillin-susceptible isolates only)

Staphylococcus epidermidis (methicillin-susceptible isolates only)

Staphylococcus saprophyticus

Streptococcus pneumoniae

Streptococcus pyogenes

Gram-negative bacteria:

Campylobacter jejuni

Citrobacter koseri

Citrobacter freundii

Enterobacter cloacae

Escherichia coli

Haemophilus influenzae

Haemophilus parainfluenzae

Klebsiella pneumoniae

Moraxella catarrhalis

Morganella morganii

Neisseria gonorrhoeae

Proteus mirabilis

Proteus vulgaris

Providencia rettgeri

Providencia stuartii

Pseudomonas aeruginosa

Salmonella typhi

Serratia marcescens

Shigella boydii

Shigella dysenteriae

Shigella flexneri

Shigella sonnei

Yersinia pestis

The following in vitro data are available, but their clinical significance is unknown. At least 90 percent of the following bacteria exhibit an in vitro minimum inhibitory concentration (MIC) less than or equal to the susceptible breakpoint for ciprofloxacin (≤1 mcg/mL). However, the efficacy of ciprofloxacin in treating clinical infections due to these bacteria has not been established in adequate and well-controlled clinical trials.

Gram-positive bacteria:

Staphylococcus haemolyticus (methicillin-susceptible isolates only)

Staphylococcus hominis (methicillin-susceptible isolates only)

Gram-negative bacteria:

Acinetobacter lwoffi

Aeromonas hydrophila

Edwardsiella tarda

Enterobacter aerogenes

Klebsiella oxytoca

Legionella pneumophila

Pasteurella multocida

Salmonella enteritidis

Vibrio cholerae

Vibrio parahaemolyticus

Vibrio vulnificus

Yersinia enterocolitica

Susceptibility Test Methods

When available, the clinical microbiology laboratory should provide the results of in vitro susceptibility test results for antimicrobial drug products used in resident hospitals to the physician as periodic reports that describe the susceptibility profile of nosocomial and community-acquired pathogens. These reports should aid the physician in selecting an antibacterial drug product for treatment.

Dilution Techniques:

Quantitative methods are used to determine antimicrobial minimum inhibitory concentrations (MICs). These MICs provide estimates of the susceptibility of bacteria to antimicrobial compounds. The MICs should be determined using a standardized test method (broth and/or agar).5,6,7The MIC values should be interpreted according to criteria provided in Table 12.

Diffusion Techniques:

Quantitative methods that require measurement of zone diameters can also provide reproducible estimates of the susceptibility of bacteria to antimicrobial compounds. The zone size provides an estimate of the susceptibility of bacteria to antimicrobial compounds. The zone size should be determined using a standardized test method.6,7,8This procedure uses paper disks impregnated with 5 mcg ciprofloxacin to test the susceptibility of bacteria to ciprofloxacin. The disc diffusion interpretive criteria are provided in Table 12.

Table 12: Susceptibility Test Interpretive Criteria for Ciprofloxacin

1. The current absence of data on resistant isolates precludes defining any results other than “Susceptible.” If isolates yield MIC results other than susceptible, they should be submitted to a reference laboratory for further testing.

2. MIC is determined by the agar dilution method


MIC (mcg/mL)
Zone Diameter (mm)
Bacteria 


R



Enterobacteriaceae 
≤1 

≥4
≥21 
16 to 20 
≤15 
Enterococcus faecalis 
≤1 

≥4
≥21 
16 to 20 
≤15 
Staphylococcus aureus 
≤1 

≥4
≥21 
16 to 20 
≤15 
Staphylococcus epidermidis 
≤1 

≥4
≥21 
16 to 20 
≤15 
Staphylococcus saprophyticus 
≤1 

≥4
≥21 
16 to 20 
≤15 
Pseudomonas aeruginosa 
≤1 

≥4
≥21 
16 to 20 
≤15 
Haemophilus influenzae1 
≤1 
-
-
≥21 
-
-
Haemophilus parainfluenzae1 
≤1 
-
-
≥21 
-
-
Salmonella typhi 
≤0.06 
0.12 to 0.5 
≥1
≥31 
21 to 30 
≤20 
Streptococcus pneumoniae 
≤1 

≥4
≥21 
16 to 20 
≤15 
Streptococcus pyogenes 
≤1 

≥4
≥21 
16 to 20 
≤15 
Neisseria gonorrhoeae2 
≤0.06 
0.12 to 0.5 
≥1
≥41 
28 to 40 
≤27 
Bacillus anthracis1 
≤0.25 
-
-
-
-
-
Yersinia pestis1 
≤0.25 
-
-
-
-
-
S=Susceptible, I=Intermediate, and R=Resistant. 

A report of "Susceptible" indicates that the antimicrobial is likely to inhibit growth of the pathogen if the antimicrobial compound reaches the concentrations at the site of infection necessary to inhibit growth of the pathogen. A report of "Intermediate" indicates that the result should be considered equivocal, and, if the microorganism is not fully susceptible to alternative, clinically feasible drugs, the test should be repeated. This category implies possible clinical applicability in body sites where the drug is physiologically concentrated or in situations where high dosage of drug can be used. This category also provides a buffer zone that prevents small uncontrolled technical factors from causing major discrepancies in interpretation. A report of "Resistant" indicates that the antimicrobial is not likely to inhibit growth of the pathogen if the antimicrobial compound reaches the concentrations usually achievable at the infection site; other therapy should be selected.

Quality Control

Standardized susceptibility test procedures require the use of laboratory controls to monitor the accuracy and precision of supplies and reagents used in the assay, and the techniques of the individuals performing the test.5,6,7,8Standard ciprofloxacin powder should provide the following range of MIC values noted in Table 13. For the diffusion technique using the ciprofloxacin 5 mcg disk the criteria in Table 13 should be achieved.

Table 13: Acceptable Quality Control Ranges for Ciprofloxacin

1MIC is determined by the agar dilution method

Bacteria 
MIC range (mcg/mL
Zone Diameter (mm
Enterococcus faecalis ATCC 29212 
0.25 to 2 
-
Escherichia coli ATCC 25922 
0.004 to 0.015 
30 to 40 
Haemophilus influenzae ATCC 49247 
0.004 to 0.03 
34 to 42 
Pseudomonas aeruginosa ATCC 27853 
0.25 to 1 
25 to 33 
Staphylococcus aureus ATCC 29213 
0.12 to 0.5 
-
Staphylococcus aureus ATCC 25923 
-
22 to 30 
Neisseria gonorrhoeae ATCC 492261 
0.001 to 0.008 
48 to 58 
Campylobacter jejuni ATCC 33560 
0.06 to 0.25 and 0.03 to 0.12 
-

Nonclinical Toxicology

Carcinogenesis, Mutagenesis, Impairment of Fertility

Eight in vitro mutagenicity tests have been conducted with ciprofloxacin, and the test results are listed below:

  • Salmonella/Microsome Test (Negative)
  • E. coli DNA Repair Assay (Negative)
  • Mouse Lymphoma Cell Forward Mutation Assay (Positive)
  • Chinese Hamster V79Cell HGPRT Test (Negative)
  • Syrian Hamster Embryo Cell Transformation Assay (Negative)
  • Saccharomyces cerevisiae Point Mutation Assay (Negative)
  • Saccharomyces cerevisiae Mitotic Crossover and Gene Conversion Assay (Negative)
  • Rat Hepatocyte DNA Repair Assay (Positive)
  • Thus, 2 of the 8 tests were positive, but results of the following 3 in vivo test systems gave negative results:
  • Rat Hepatocyte DNA Repair Assay
  • Micronucleus Test (Mice)
  • Dominant Lethal Test (Mice)

Long-term carcinogenicity studies in rats and mice resulted in no carcinogenic or tumorigenic effects due to ciprofloxacin at daily oral dose levels up to 250 mg/kg and 750 mg/kg to rats and mice, respectively (approximately 1.7-and 2.5-times the highest recommended therapeutic dose based upon body surface area, respectively).

Results from photo co-carcinogenicity testing indicate that ciprofloxacin does not reduce the time to appearance of UV-induced skin tumors as compared to vehicle control. Hairless (Skh-1) mice were exposed to UVA light for 3.5 hours five times every two weeks for up to 78 weeks while concurrently being administered ciprofloxacin. The time to development of the first skin tumors was 50 weeks in mice treated concomitantly with UVA and ciprofloxacin (mouse dose approximately equal to maximum recommended human dose based upon body surface area), as opposed to 34 weeks when animals were treated with both UVA and vehicle. The times to development of skin tumors ranged from 16 weeks to 32 weeks in mice treated concomitantly with UVA and other quinolones.9

In this model, mice treated with ciprofloxacin alone did not develop skin or systemic tumors. There are no data from similar models using pigmented mice and/or fully haired mice. The clinical significance of these findings to humans is unknown.

Fertility studies performed in rats at oral doses of ciprofloxacin up to 100 mg/kg (approximately 0.7-times the highest recommended therapeutic dose based upon body surface area) revealed no evidence of impairment.

Animal Toxicology and/or Pharmacology

Ciprofloxacin and other quinolones have been shown to cause arthropathy in immature animals of most species tested [see WARNINGS AND PRECAUTIONS (5.12)]. Damage of weight bearing joints was observed in juvenile dogs and rats. In young beagles, 100 mg/kg ciprofloxacin, given daily for 4 weeks, caused degenerative articular changes of the knee joint. At 30 mg/kg, the effect on the joint was minimal. In a subsequent study in young beagle dogs, oral ciprofloxacin doses of 30 mg/kg and 90 mg/kg ciprofloxacin (approximately 1.3-times and 3.5-times the pediatric dose based upon comparative plasma AUCs) given daily for 2 weeks caused articular changes which were still observed by histopathology after a treatment-free period of 5 months. At 10 mg/kg (approximately 0.6-times the pediatric dose based upon comparative plasma AUCs), no effects on joints were observed. This dose was also not associated with arthrotoxicity after an additional treatment-free period of 5 months. In another study, removal of weight bearing from the joint reduced the lesions but did not totally prevent them.

Crystalluria, sometimes associated with secondary nephropathy, occurs in laboratory animals dosed with ciprofloxacin. This is primarily related to the reduced solubility of ciprofloxacin under alkaline conditions, which predominate in the urine of test animals; in man, crystalluria is rare since human urine is typically acidic. In rhesus monkeys, crystalluria without nephropathy was noted after single oral doses as low as 5 mg/kg. (approximately 0.07-times the highest recommended therapeutic dose based upon body surface area). After 6 months of intravenous dosing at 10 mg/kg/day, no nephropathological changes were noted; however, nephropathy was observed after dosing at 20 mg/kg/day for the same duration (approximately 0.2-times the highest recommended therapeutic dose based upon body surface area).

In dogs, ciprofloxacin at 3 mg/kg and 10 mg/kg by rapid intravenous injection (15 sec.) produces pronounced hypotensive effects. These effects are considered to be related to histamine release, since they are partially antagonized by pyrilamine, an antihistamine. In rhesus monkeys, rapid intravenous injection also produces hypotension but the effect in this species is inconsistent and less pronounced.

In mice, concomitant administration of nonsteroidal anti-inflammatory drugs such as phenylbutazone and indomethacin with quinolones has been reported to enhance the CNS stimulatory effect of quinolones.

Ocular toxicity seen with some related drugs has not been observed in ciprofloxacin-treated animals.

Clinical Studies

Complicated Urinary Tract Infection and Pyelonephritis–Efficacy in Pediatric Patients

Ciprofloxacin administered intravenously and/or orally was compared to a cephalosporin for treatment of cUTI and pyelonephritis in pediatric patients 1 to 17 years of age (mean age of 6 ± 4 years). The trial was conducted in the US, Canada, Argentina, Peru, Costa Rica, Mexico, South Africa, and Germany. The duration of therapy was 10 to 21 days (mean duration of treatment was 11 days with a range of 1 to 88 days). The primary objective of the study was to assess musculoskeletal and neurological safety.

Patients were evaluated for clinical success and bacteriological eradication of the baseline organism(s) with no new infection or superinfection at 5 to 9 days post-therapy (Test of Cure or TOC). The Per Protocol population had a causative organism(s) with protocol specified colony count(s) at baseline, no protocol violation, and no premature discontinuation or loss to follow-up (among other criteria).

The clinical success and bacteriologic eradication rates in the Per Protocol population were similar between ciprofloxacin and the comparator group as shown below.

Table 14: Clinical Success and Bacteriologic Eradication at Test of Cure (5 to 9 Days Post-Therapy)

1 Patients with baseline pathogen(s) eradicated and no new infections or superinfections/total number of patients. There were 5.5% (6/211) ciprofloxacin and 9.5% (22/231) comparator patients with superinfections or new infections.


Ciprofloxacin
Comparator
Randomized Patients 
337
352
Per Protocol Patients 
211
231
Clinical Response at 5 to 9 Days Post-Treatment 
95.7% (202/211)
92.6% (214/231)

95% CI [-1.3%, 7.3%]
Bacteriologic Eradication by Patient at 5 to 9 Days Post - Treatment1 
84.4% (178/211)
78.3% (181/231)

95% CI [-1.3%, 13.1%]
Bacteriologic Eradication of the Baseline Pathogen at 5 to 9 Days Post - Treatment 

Escherichia coli 
156/178 (88%)
161/179 (90%)

Inhalational Anthrax in Adults and Pediatrics

The mean serum concentrations of ciprofloxacin associated with a statistically significant improvement in survival in the rhesus monkey model of inhalational anthrax are reached or exceeded in adult and pediatric patients receiving oral and intravenous regimens. Ciprofloxacin pharmacokinetics have been evaluated in various human populations. The mean peak serum concentration achieved at steady-state in human adults receiving 500 mg orally every 12 hours is 2.97 mcg/mL, and 4.56 mcg/mL following 400 mg intravenously every 12 hours. The mean trough serum concentration at steady-state for both of these regimens is 0.2 mcg/mL. In a study of 10 pediatric patients between 6 and 16 years of age, the mean peak plasma concentration achieved is 8.3 mcg/mL and trough concentrations range from 0.09 mcg/mL to 0.26 mcg/mL, following two 30-minute intravenous infusions of 10 mg/kg administered 12 hours apart. After the second intravenous infusion patients switched to 15 mg/kg orally every 12 hours achieve a mean peak concentration of 3.6 mcg/mL after the initial oral dose. Long-term safety data, including effects on cartilage, following the administration of ciprofloxacin to pediatric patients are limited. Ciprofloxacin serum concentrations achieved in humans serve as a surrogate endpoint reasonably likely to predict clinical benefit and provide the basis for this indication.1

A placebo-controlled animal study in rhesus monkeys exposed to an inhaled mean dose of 11 LD50 (~5.5 x 105spores (range 5 to 30 LD50) of B. anthracis was conducted. The minimal inhibitory concentration (MIC) of ciprofloxacin for the anthrax strain used in this study was 0.08 mcg/mL. In the animals studied, mean serum concentrations of ciprofloxacin achieved at expected Tmax (1 hour post-dose) following oral dosing to steady-state ranged from 0.98 mcg/mL to 1.69 mcg/mL. Mean steady-state trough concentrations at 12 hours post-dose ranged from 0.12 mcg/mL to 0.19 mcg/mL.10Mortality due to anthrax for animals that received a 30-day regimen of oral ciprofloxacin beginning 24 hours post-exposure was significantly lower (1/9), compared to the placebo group (9/10) [p= 0.001]. The one ciprofloxacin-treated animal that died of anthrax did so following the 30-day drug administration period.11

More than 9300 persons were recommended to complete a minimum of 60 days of antibacterial prophylaxis against possible inhalational exposure to B. anthracis during 2001. Ciprofloxacin was recommended to most of those individuals for all or part of the prophylaxis regimen. Some persons were also given anthrax vaccine or were switched to alternative antibacterial drugs. No one who received ciprofloxacin or other therapies as prophylactic treatment subsequently developed inhalational anthrax. The number of persons who received ciprofloxacin as all or part of their post-exposure prophylaxis regimen is unknown.

Plague

A placebo-controlled animal study in African green monkeys exposed to an inhaled mean dose of 110 LD50 (range 92 to 127 LD50) of Yersinia pestis (CO92 strain) was conducted. The minimal inhibitory concentration (MIC) of ciprofloxacin for the Y. pestis strain used in this study was 0.015 mcg/mL. Mean peak serum concentrations of ciprofloxacin achieved at the end of a single 60 minute infusion were 3.49 ± mcg/mL 0.55 mcg/mL, 3.91 mcg/mL ± 0.58 mcg/mL and 4.03 mcg/mL ± 1.22 mcg/mL on Day 2, Day 6 and Day 10 of treatment in African green monkeys, respectively All trough concentrations (Day 2, Day 6 and Day 10) were <0.5 mcg /mL. Animals were randomized to receive either a 10-day regimen of intravenous ciprofloxacin 15 mg/kg, or placebo beginning when animals were found to be febrile (a body temperature greater than 1.5oC over baseline for two hours), or at 76 hours post-challenge, whichever occurred sooner. Mortality in the ciprofloxacin group was significantly lower (1/10) compared to the placebo group (2/2) [difference: -90.0%, 95% exact confidence interval: -99.8% to -5.8%]. The one ciprofloxacin-treated animal that died did not receive the proposed dose of ciprofloxacin due to a failure of the administration catheter. Circulating ciprofloxacin concentration was below 0.5 mcg/mL at all timepoints tested in this animal. It became culture negative on Day 2 of treatment, but had a resurgence of low grade bacteremia on Day 6 after treatment initiation. Terminal blood culture in this animal was negative.12

REFERENCES

  1. 21 CFR 314.510 (Subpart H–Accelerated Approval of New Drugs for Life-Threatening Illnesses).
  2. Friedman J, Polifka J. Teratogenic effects of drugs: a resource for clinicians (TERIS). Baltimore, Maryland: Johns Hopkins University Press, 2000:149-195.
  3. Loebstein R, Addis A, Ho E, et al. Pregnancy outcome following gestational exposure to fluoroquinolones: a multicenter prospective controlled study. Antimicrob Agents Chemother. 1998;42(6):1336-1339.
  4. Schaefer C, Amoura-Elefant E, Vial T, et al. Pregnancy outcome after prenatal quinolone exposure. Evaluation of a case registry of the European network of teratology information services (ENTIS). Eur J Obstet Gynecol Reprod Biol. 1996;69:83-89.
  5. Clinical and Laboratory Standards Institute (CLSI). Methods for Dilution Antimicrobial Susceptibility Tests for Bacteria That Grow Aerobically; Approved Standard–9thEdition. CLSI Document M7-A9 [2012]. Clinical and Laboratory Standards Institute, 950 West Valley Rd., Suite 2500, Wayne, PA. 19087-1898.
  6. Clinical and Laboratory Standards Institute (CLSI). Performance Standards for Antimicrobial Susceptibility Testing; 24thInformational Supplement. CLSI Document M100 S24 [2014]. Clinical and Laboratory Standards Institute, 950 West Valley Rd., Suite 2500, Wayne, PA. 19087-1898.
  7. Clinical and Laboratory Standards Institute (CLSI). Methods for Antimicrobial Dilution and Disk Susceptibility Testing of Infrequently Isolated or Fastidious Bacteria; Approved Guideline–2ndEdition. CLSI Document M45-A2 [2010]. Clinical and Laboratory Standards Institute, 950 West Valley Rd., Suite 2500, Wayne, PA. 19087-1898.
  8. Clinical and Laboratory Standards Institute (CLSI), Performance Standards for Antimicrobial Disk Susceptibility Tests; Approved Standard–11th Edition. CLSI Document M2-A11[2012]. Clinical and Laboratory Standards Institute, 950 West Valley Rd., Suite 2500, Wayne, PA. 19087-1898.
  9. CReport presented at the FDA's Anti-Infective Drug and Dermatological Drug Product's Advisory Committee meeting, March 31, 1993, Silver Spring, MD. Report available from FDA, CDER, Advisors and Consultants Staff, HFD-21, 1901 Chapman Avenue, Room 200, Rockville, MD 20852, USA.
  10. Kelly DJ, et al. Serum concentrations of penicillin, doxycycline, and ciprofloxacin during prolonged therapy in rhesus monkeys. J Infect Dis 1992; 166:1184-7.
  11. Friedlander AM, et al. Postexposure prophylaxis against experimental inhalational anthrax. J Infect Dis 1993; 167:1239-42.
  12. Anti-infective Drugs Advisory Committee Meeting, April 3, 2012 -The efficacy of Ciprofloxacin for treatment of Pneumonic Plague.

How Supplied/Storage and Handling

Ciprofloxacin for oral suspension is supplied in 5% and 10% strengths. The drug product is composed of two components (granular blend containing the active ingredient and diluent) which must be mixed by the pharmacist [see DOSAGE AND ADMINISTRATION (2.5)].

Strengths
Total volume after reconstitution
Ciprofloxacin Concentration
Ciprofloxacin USP contents per bottle
NDC Code
5%
100 mL
250 mg/5 mL
5,000 mg
68180-392-01
10%
100 mL
500 mg/5 mL
10,000 mg
68180-393-01

Store granular blend and diluent below 25°C (77°F); excursions are permitted from 15° to 30°C (59° to 86°F) [see USP Controlled Room Temperature]. Protect from freezing.

The reconstituted product may be stored at 25°C (77°F) for 14 days; excursions are permitted from 15° to 30°C (59° to 86°F) [see USP Controlled Room Temperature]. Protect from freezing.

A twin spoon (one side 5 mL and other side 2.5 mL) is provided for the patient.

Patient Counseling Information

Advise the patient to read the FDA-approved patient labeling (Medication Guide)

Serious Adverse Reactions

Advise patients to stop taking ciprofloxacin for oral suspension if they experience an adverse reaction and to call their healthcare provider for advice on completing the full course of treatment with another antibacterial drug.

Inform patients of the following serious adverse reactions that have been associated with ciprofloxacin for oral suspension or other fluoroquinolone use:

  • Disabling and potentially irreversible serious adverse reactions that may occur together: Inform patients that disabling and potentially irreversible serious adverse reactions, including tendinitis and tendon rupture, peripheral neuropathies, and central nervous system effects, have been associated with use of ciprofloxacin for oral suspension and may occur together in the same patient. Inform patients to stop taking ciprofloxacin for oral suspension immediately if they experience an adverse reaction and to call their healthcare provider.
  • Tendinitis and tendon rupture: Instruct patients to contact their healthcare provider if they experience pain, swelling, or inflammation of a tendon, or weakness or inability to use one of their joints; rest and refrain from exercise; and discontinue ciprofloxacin treatment. Symptoms may be irreversible. The risk of severe tendon disorder with fluoroquinolones is higher in older patients usually over 60 years of age, in patients taking corticosteroid drugs, and in patients with kidney, heart or lung transplants.
  • Peripheral Neuropathies: Inform patients that peripheral neuropathies have been associated with ciprofloxacin use, symptoms may occur soon after initiation of therapy and may be irreversible. If symptoms of peripheral neuropathy including pain, burning, tingling, numbness and/or weakness develop, immediately discontinue ciprofloxacin for oral suspension and tell them to contact their physician.
  • Central nervous system effects (for example, convulsions, dizziness, lightheadedness, increased intracranial pressure): Inform patients that convulsions have been reported in patients receiving fluoroquinolones, including Ciprofloxacin. Instruct patients to notify their physician before taking this drug if they have a history of convulsions. Inform patients that they should know how they react to ciprofloxacin before they operate an automobile or machinery or engage in other activities requiring mental alertness and coordination. Instruct patients to notify their physician if persistent headache with or without blurred vision occurs.
  • Exacerbation of Myasthenia Gravis: Instruct patients to inform their physician of any history of myasthenia gravis. Instruct patients to notify their physician if they experience any symptoms of muscle weakness, including respiratory difficulties.
  • Hypersensitivity Reactions: Inform patients that ciprofloxacin can cause hypersensitivity reactions, even following a single dose, and to discontinue the drug at the first sign of a skin rash, hives or other skin reactions, a rapid heartbeat, difficulty in swallowing or breathing, any swelling suggesting angioedema (for example, swelling of the lips, tongue, face, tightness of the throat, hoarseness), or other symptoms of an allergic reaction.
  • Hepatotoxicity: Inform patients that severe hepatotoxicity (including acute hepatitis and fatal events) has been reported in patients taking ciprofloxacin for oral suspension. Instruct patients to inform their physician if they experience any signs or symptoms of liver injury including: loss of appetite, nausea, vomiting, fever, weakness, tiredness, right upper quadrant tenderness, itching, yellowing of the skin and eyes, light colored bowel movements or dark colored urine.
  • Diarrhea: Diarrhea is a common problem caused by antibiotics which usually ends when the antibiotic is discontinued. Sometimes after starting treatment with antibiotics, patients can develop watery and bloody stools (with or without stomach cramps and fever) even as late as two or more months after having taken the last dose of the antibiotic. If this occurs, instruct patients to contact their physician as soon as possible.
  • Prolongation of the QT Interval: Instruct patients to inform their physician of any personal or family history of QT prolongation or proarrhythmic conditions such as hypokalemia, bradycardia, or recent myocardial ischemia; if they are taking any Class IA (quinidine, procainamide), or Class III (amiodarone, sotalol) antiarrhythmic agents. Instruct patients to notify their physician if they have any symptoms of prolongation of the QT interval, including prolonged heart palpitations or a loss of consciousness.
  • Musculoskeletal Disorders in Pediatric Patients: Instruct parents to inform their child's physician if the child has a history of joint-related problems before taking this drug. Inform parents of pediatric patients to notify their child's physician of any joint-related problems that occur during or following ciprofloxacin therapy [see WARNINGS AND PRECAUTIONS (5.12) and USE IN SPECIFIC POPULATIONS (8.4)].
  • Tizanidine: Instruct patients not to use ciprofloxacin if they are already taking tizanidine. Ciprofloxacin increases the effects of tizanidine (Zanaflex®).
  • Theophylline: Inform patients that ciprofloxacin may increase the effects of theophylline. Life-threatening CNS effects and arrhythmias can occur. Advise the patients to immediately seek medical help if they experience seizures, palpitations, or difficulty breathing.
  • Caffeine: Inform patients that ciprofloxacin for oral suspension may increase the effects of caffeine. There is a possibility of caffeine accumulation when products containing caffeine are consumed while taking quinolones.
  • Photosensitivity/Phototoxicity: Inform patients that photosensitivity/phototoxicity has been reported in patients receiving fluoroquinolones. Inform patients to minimize or avoid exposure to natural or artificial sunlight (tanning beds or UVA/B treatment) while taking quinolones. If patients need to be outdoors while using quinolones, instruct them to wear loose-fitting clothes that protect skin from sun exposure and discuss other sun protection measures with their physician. If a sunburn-like reaction or skin eruption occurs, instruct patients to contact their physician.

Antibacterial Resistance

Inform patients that antibacterial drug ciprofloxacin for oral suspension should only be used to treat bacterial infections. They do not treat viral infections (for example, the common cold). When ciprofloxacin for oral suspension is prescribed to treat a bacterial infection, patients should be told that although it is common to feel better early in the course of therapy, the medication should be taken exactly as directed. Skipping doses or not completing the full course of therapy may (1) decrease the effectiveness of the immediate treatment and (2) increase the likelihood that bacteria will develop resistance and will not be treatable by ciprofloxacin for oral suspension or other antibacterial drugs in the future.

Administration Instructions

Instruct the Patient

  • To shake ciprofloxacin for oral suspension vigorously each time before use for approximately 30 seconds.
  • To always use the graduated measuring spoon to obtain the exact dose.
  • Not to chew the granular blend, but to swallow them.
  • That water may be taken afterwards.
  • Reclose the bottle properly after each use according to instructions on the cap.
  • After treatment has been completed, ciprofloxacin for oral suspension should not be reused.

Administration with Food, Fluids, and Concomitant Medications

Inform patients that ciprofloxacin for oral suspension may be taken with or without food.

Inform patients to drink fluids liberally while taking ciprofloxacin for oral suspension to avoid formation of highly concentrated urine and crystal formation in the urine.

Inform patients that antacids containing magnesium, or aluminum, as well as sucralfate, metal cations such as iron, and multivitamin preparations with zinc or didanosine should be taken at least two hours before or six hours after ciprofloxacin for oral suspension administration. Ciprofloxacin for oral suspension should not be taken with dairy products (like milk or yogurt) or calcium-fortified juices alone since absorption of ciprofloxacin may be significantly reduced; however, ciprofloxacin for oral suspension may be taken with a meal that contains these products.

Drug Interactions Oral Antidiabetic Agents

Inform patients that hypoglycemia has been reported when ciprofloxacin and oral antidiabetic agents were co-administered; if low blood sugar occurs with ciprofloxacin for oral suspension, instruct them to consult their physician and that their antibacterial medicine may need to be changed.

Anthrax and Plague Studies

Inform patients given ciprofloxacin for oral suspension for these conditions that efficacy studies could not be conducted in humans for feasibility reasons. Therefore, approval for these conditions was based on efficacy studies conducted in animals.

The brands listed are trademarks of their respective owners and are not trademarks of Lupin Pharmaceuticals, Inc. The makers of these brands are not affiliated with and do not endorse Lupin Pharmaceuticals, Inc. or its products.

Manufactured for

Lupin Pharmaceuticals, Inc. 

Baltimore, Maryland 21202

United States

Manufactured by:

1. Ciprofloxacin granular blend is manufactured by- 

Lupin Limited

Goa - 403 722

INDIA.

2. Diluent is manufactured by -

Lupin Limited

Aurangabad 431 210

INDIA

Revised: August 27, 2016                                                                                              ID#: 245566

CIPROFLOXACIN (SIP-roe-FLOX-a-sin)

FOR ORAL SUSPENSION

Rx only

Read this Medication Guide before you start taking ciprofloxacin for oral suspension and each time you get a refill. There may be new information. This information does not take the place of talking to your healthcare provider about your medical condition or your treatment.

What is the most important information I should know about ciprofloxacin for oral suspension?

Ciprofloxacin, a fluoroquinolone antibacterial medicine, can cause serious side effects. Some of these serious side effects can happen at the same time and could result in death.

If you get any of the following serious side effects while you take ciprofloxacin for oral suspension, you should stop taking ciprofloxacin for oral suspension immediately and get medical help right away.

1.    Tendon rupture or swelling of the tendon (tendinitis).

  • Tendon problems can happen in people of all ages who take ciprofloxacin.
  • Tendons are tough cords of tissue that connect muscles to bones.
  • Symptoms of tendon problems may include:
    • pain
    • swelling
    • tears and swelling of the tendons including the back of the ankle (Achilles), shoulder, hand, or other tendon sites.
  • The risk of getting tendon problems while you take ciprofloxacin is higher if you:
    • are over 60 years of age
    • are taking steroids (corticosteroids)
    • have had a kidney, heart or lung transplant
  • Tendon problems can happen in people who do not have the above risk factors when they take ciprofloxacin.
  • Other reasons that can increase your risk of tendon problems can include:
    • physical activity or exercise
    • kidney failure
    • tendon problems in the past, such as in people with rheumatoid arthritis (RA)
  • Stop taking ciprofloxacin immediately and get medical help right away at the first sign of tendon pain, swelling or inflammation.

The most common area of pain and swelling is the Achilles tendon at the back of your ankle. This can also happen with other tendons.

  • Tendon rupture can happen while you are taking or after you have finished taking ciprofloxacin for oral suspension. Tendon ruptures can happen within hours or days of taking ciprofloxacin for oral suspension and have happened up to several months after people have finished taking their fluoroquinolone.
  • Stop taking ciprofloxacin for oral suspensionimmediately andget medical help right away if you get any of the following signs or symptoms of a tendon rupture:
    • hear or feel a snap or pop in a tendon area
    • bruising right after an injury in a tendon area
    • unable to move the affected area or bear weight

2.   Changes in sensation and possible nerve damage (Peripheral Neuropathy). Damage to the nerves in arms, hands, legs, or feet can happen in people who take fluoroquinolones, including ciprofloxacin for oral suspension. Stop taking ciprofloxacin for oral suspension immediately and talk to your healthcare provider right away if you get any of the following symptoms of peripheral neuropathy in your arms, hands, legs, or feet:

  • pain
  • burning
  • tingling
  • numbness
  • weakness

Ciprofloxacin for oral suspension may need to be stopped to prevent permanent nerve damage.

3.   Central Nervous System (CNS) effects. Seizures have been reported in people who take fluoroquinolone antibacterial medicines, including ciprofloxacin for oral suspension. Tell your healthcare provider if you have a history of seizures before you start taking ciprofloxacin for oral suspension. CNS side effects may happen as soon as after taking the first dose of ciprofloxacin for oral suspension. Stop taking ciprofloxacin for oral suspension immediately and talk to your healthcare provider right away if you get any of these side effects, or other changes in mood or behavior:

  • seizures
  • hear voices, see things, or sense things that are not there (hallucinations)
  • feel restless
  • tremors
  • feel anxious or nervous
  • confusion
  • depression
  • trouble sleeping
  • nightmares
  • feel lightheaded or dizzy
  • feel more suspicious (paranoia)
  • suicidal thoughts or acts
  • headaches that will not go away, with or without blurred vision

4.   Worsening of myasthenia gravis (a problem that causes muscle weakness). Fluoroquinolones like ciprofloxacin for oral suspension may cause worsening of myasthenia gravis symptoms, including muscle weakness and breathing problems. Tell your healthcare provider if you have a history of myasthenia gravis before you start taking ciprofloxacin for oral suspension. Call your healthcare provider right away if you have any worsening muscle weakness or breathing problems.

What is ciprofloxacin?

Ciprofloxacin is a fluoroquinolone antibacterial medicine used in adults age 18 years and older to treat certain infections caused by certain germs called bacteria. These bacterial infections include:

  • urinary tract infection
  • chronic prostate infection
  • lower respiratory tract infection
  • sinus infection
  • skin infection
  • bone and joint infection
  • nosocomial pneumonia
  • intra-abdominal infection, complicated
  • infectious diarrhea
  • typhoid (enteric) fever
  • cervical and urethral gonorrhea, uncomplicated
  • people with a low white blood cell count and a fever
  • inhalational anthrax
  • plague
  • Studies of ciprofloxacin for use in the treatment of plague and anthrax were done in animals only, because plague and anthrax could not be studied in people.
  • Ciprofloxacin for oral suspension should not be used in patients with acute exacerbation of chronic bronchitis, acute uncomplicated cystitis, and sinus infections, if there are other treatment options available.
  • Ciprofloxacin for oral suspension should not be used as the first choice of antibacterial medicine to treat lower respiratory tract infections cause by a certain type of bacterial called Streptococcus pneumoniae .
  • Ciprofloxacin for oral suspension is also used in children younger than 18 years of age to treat complicated urinary tract and kidney infections or who may have breathed in anthrax germs, have plague or have been exposed to plague germs.
  • Children younger than 18 years of age have a higher chance of getting bone, joint, or tendon (musculoskeletal) problems such as pain or swelling while taking ciprofloxacin for oral suspension. Ciprofloxacin for oral suspension should not be used as the first choice of antibacterial medicine in children under 18 years of age.

Who should not take ciprofloxacin for oral suspension?

Do not take ciprofloxacin for oral suspension if you:

  • Have ever had a severe allergic reaction to an antibacterial medicine known as a fluoroquinolone, or are allergic to any of the ingredients in ciprofloxacin for oral suspension. See the end of this Medication Guide for a complete list of ingredients in ciprofloxacin for oral suspension.
  • Also take a medicine called tizanidine (Zanaflex®).

Ask your healthcare provider if you are not sure.

What should I tell my healthcare provider before taking ciprofloxacin for oral suspension?

Before you take ciprofloxacin for oral suspension, tell your healthcare provider if you:

  • have tendon problems; ciprofloxacin for oral suspension should not be used in patients who have a history of tendon problems
  • have a disease that causes muscle weakness (myasthenia gravis); ciprofloxacin for oral suspension should not be used in patients who have a known history of myasthenia gravis
  • have liver problems
  • have central nervous system problems (such as epilepsy)
  • have nerve problems; ciprofloxacin for oral suspension should not be used in patients who have a history of a nerve problem called peripheral neuropathy
  • have or anyone in your family has an irregular heartbeat, especially a condition called "QT prolongation"
  • have or have had seizures
  • have kidney problems. You may need a lower dose of ciprofloxacin for oral suspension if your kidneys do not work well.
  • have joint problems including rheumatoid arthritis (RA)
  • have trouble swallowing pills
  • have any other medical conditions
  • are pregnant or plan to become pregnant. It is not known if ciprofloxacin for oral suspension will harm your unborn baby.
  • are breastfeeding or plan to breastfeed. Ciprofloxacin passes into breast milk. You and your healthcare provider should decide whether you will take ciprofloxacin for oral suspension or breastfeed. You should not do both.

Tell your healthcare provider about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements.

Ciprofloxacin for oral suspension and other medicines can affect each other causing side effects.

Especially tell your healthcare provider if you take:

  • a steroid medicine
  • an anti-psychotic medicine
  • a tricyclic antidepressant
  • a water pill (diuretic)
  • theophylline (such as Theo-24®, Elixophyllin®, Theochron®, Uniphyl®, Theolair®)
  • a medicine to control your heart rate or rhythm (antiarrhythmics)
  • an oral anti-diabetes medicine
  • phenytoin (Fosphenytoin Sodium®, Cerebyx®, Dilantin-125®, Dilantin®, Extended Phenytoin Sodium®, Prompt Phenytoin Sodium®, Phenytek®)
  • cyclosporine (Gengraf®, Neoral®, Sandimmune®, Sangcya®).
  • a blood thinner (such as warfarin, Coumadin®, Jantoven®)
  • methotrexate (Trexall®)
  • ropinirole (Requip®)
  • clozapine (Clozaril®, Fazaclo®ODT®)
  • a Non-Steroidal Anti-Inflammatory Drug (NSAID). Many common medicines for pain relief are NSAIDs. Taking an NSAID while you take ciprofloxacin or other fluoroquinolones may increase your risk of central nervous system effects and seizures.
  • sildenafil (Viagra®, Revatio®)
  • duloxetine
  • products that contain caffeine
  • probenecid (Probalan®, Col-probenecid®)
  • certain medicines may keep ciprofloxacin for oral suspension from working correctly. Take ciprofloxacin for oral suspension either 2 hours before or 6 hours after taking these medicines, vitamins, or supplements:
    • an antacid, multivitamin, or other medicine or supplements that has magnesium, calcium, aluminum, iron, or zinc
    • sucralfate (Carafate®)
    • didanosine (Videx®, Videx EC®)

Ask your healthcare provider for a list of these medicines if you are not sure.

Know the medicines you take. Keep a list of them to show your healthcare provider and pharmacist when you get a new medicine.

How should I take ciprofloxacin for oral suspension?

  • Take ciprofloxacin for oral suspension exactly as your healthcare provider tells you to take it.
  • Your healthcare provider will tell you how much ciprofloxacin for oral suspension to take and when to take it.
  • Take ciprofloxacin for oral suspension in the morning and evening at about the same time each day. Shake the ciprofloxacin for oral suspension bottle well each time before use for about 30 seconds to make sure the suspension is mixed well. Close the bottle completely after use.
  • Ciprofloxacin for oral suspension can be taken with or without food.
  • Ciprofloxacin for oral suspension should not be taken with dairy products (like milk or yogurt) or calcium-fortified juices alone, but may be taken with a meal that contains these products.
  • Drink plenty of fluids while taking ciprofloxacin for oral suspension.
  • Do not skip any doses of ciprofloxacin for oral suspension, or stop taking it, even if you begin to feel better, until you finish your prescribed treatment unless:
    • you have tendon problems. See "What is the most important information I should know about ciprofloxacin for oral suspension?"
    • you have nerve problems. See "What is the most important information I should know about ciprofloxacin for oral suspension?"
    • you have central nervous system problems. See "What is the most important information I should know about ciprofloxacin for oral suspension?"
    • you have a serious allergic reaction. See "What are the possible side effects of ciprofloxacin for oral suspension?"
    • your healthcare provider tells you to stop taking ciprofloxacin for oral suspension

Taking all of your ciprofloxacin for oral suspension doses will help make sure that all of the bacteria are killed. Taking all of your ciprofloxacin for oral suspension doses will help lower the chance that the bacteria will become resistant to ciprofloxacin for oral suspension. If you become resistant to ciprofloxacin for oral suspension, ciprofloxacin for oral suspension and other antibacterial medicines may not work for you in the future.

  • If you take too much ciprofloxacin for oral suspension, call your healthcare provider or get medical help right away.

What should I avoid while taking ciprofloxacin for oral suspension?

  • Ciprofloxacin for oral suspension can make you feel dizzy and lightheaded. Do not drive, operate machinery, or do other activities that require mental alertness or coordination until you know how ciprofloxacin for oral suspension affects you.
  • Avoid sunlamps, tanning beds, and try to limit your time in the sun. Ciprofloxacin for oral suspension can make your skin sensitive to the sun (photosensitivity) and the light from sunlamps and tanning beds. You could get a severe sunburn, blisters or swelling of your skin. If you get any of these symptoms while you take ciprofloxacin for oral suspension, call your healthcare provider right away. You should use a sunscreen and wear a hat and clothes that cover your skin if you have to be in sunlight.

What are the possible side effects of ciprofloxacin for oral suspension?

Ciprofloxacin for oral suspension may cause serious side effects, including:

  • See, "What is the most important information I should know about ciprofloxacin for oral suspension?"
  • Serious allergic reactions. Serious allergic reactions, including death, can happen in people taking fluoroquinolones, including ciprofloxacin, even after only 1 dose. Stop taking ciprofloxacin for oral suspension and get emergency medical help right away if you get any of the following symptoms of a severe allergic reaction:
    • hives
    • trouble breathing or swallowing
    • swelling of the lips, tongue, face
    • throat tightness, hoarseness
    • rapid heartbeat
    • faint
    • skin rash

Skin rash may happen in people taking ciprofloxacin for oral suspension even after only 1 dose. Stop taking ciprofloxacin for oral suspension at the first sign of a skin rash and call your healthcare provider. Skin rash may be a sign of a more serious reaction to ciprofloxacin for oral suspension.

  • Liver damage (hepatotoxicity). Hepatotoxicity can happen in people who take ciprofloxacin for oral suspension. Call your healthcare provider right away if you have unexplained symptoms such as:
    • nausea or vomiting
    • stomach pain
    • fever
    • weakness
    • abdominal pain or tenderness
    • itching
    • unusual tiredness
    • loss of appetite
    • light colored bowel movements
    • dark colored urine
    • yellowing of your skin or the whites of your eyes

Stop taking ciprofloxacin for oral suspension and tell your healthcare provider right away if you have yellowing of your skin or white part of your eyes, or if you have dark urine. These can be signs of a serious reaction to ciprofloxacin for oral suspension (a liver problem). Intestine infection (Pseudomembranous colitis). Pseudomembranous colitis can happen with many antibacterial medicines, including ciprofloxacin for oral suspension. Call your healthcare provider right away if you get watery diarrhea, diarrhea that does not go away, or bloody stools. You may have stomach cramps and a fever. Pseudomembranous colitis can happen 2 or more months after you have finished your antibacterial medicine.

  • Serious heart rhythm changes (QT prolongation and torsade de pointes). Tell your healthcare provider right away if you have a change in your heart beat (a fast or irregular heartbeat), or if you faint. Ciprofloxacin for oral suspension may cause a rare heart problem known as prolongation of the QT interval. This condition can cause an abnormal heartbeat and can be very dangerous. The chances of this event are higher in people:
    • who are elderly
    • with a family history of prolonged QT interval
    • with low blood potassium (hypokalemia)
    • who take certain medicines to control heart rhythm (antiarrhythmics)
  • Joint Problems. Increased chance of problems with joints and tissues around joints in children under 18 years old can happen. Tell your child's healthcare provider if your child has any joint problems during or after treatment with ciprofloxacin for oral suspension.
  • Sensitivity to sunlight (photosensitivity). See "What should I avoid while taking ciprofloxacin for oral suspension? "

The most common side effects of ciprofloxacin for oral suspension include:

  • nausea
  • diarrhea
  • changes in liver function tests
  • vomiting
  • rash

Tell your healthcare provider about any side effect that bothers you, or that does not go away.

These are not all the possible side effects of ciprofloxacin for oral suspension. For more information, ask your healthcare provider or pharmacist.

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

How should I store ciprofloxacin for oral suspension?

Ciprofloxacin for oral suspension

  • Store granular blend and diluent below 25°C (77°F); excursions are permitted from 15° to 30°C (59° to 86°F).
  • Do not freeze.
  • After your ciprofloxacin for oral suspension treatment is finished, safely throw away any unused oral suspension.

Keep ciprofloxacin for oral suspension and all medicines out of the reach of children.

General Information about the safe and effective use of ciprofloxacin for oral suspension.

Medicines are sometimes prescribed for purposes other than those listed in a Medication Guide.

Do not use ciprofloxacin for oral suspension for a condition for which it is not prescribed. Do not give ciprofloxacin for oral suspension to other people, even if they have the same symptoms that you have. It may harm them.

This Medication Guide summarizes the most important information about ciprofloxacin for oral suspension. If you would like more information about ciprofloxacin for oral suspension, talk with your healthcare provider. You can ask your healthcare provider or pharmacist for information about ciprofloxacin for oral suspension that is written for healthcare professionals.

For more information call Lupin Pharmaceuticals, Inc. at 1-800-399-2561.

What are the ingredients in Ciprofloxacin for oral suspension?

Ciprofloxacin for oral suspension:

  • Active ingredient: Ciprofloxacin USP
  • Inactive ingredients:
    • who are elderly
    • with a family history of prolonged QT interval
    • with low blood potassium (hypokalemia)
    • who take certain medicines to control heart rhythm (antiarrhythmics)

The brands listed are trademarks of their respective owners and are not trademarks of Lupin Pharmaceuticals, Inc. The makers of these brands are not affiliated with and do not endorse Lupin Pharmaceuticals, Inc. or its products.

This Medication Guide has been approved by the U.S. Food and Drug Administration.

Manufactured for

Lupin Pharmaceuticals, Inc.

Baltimore, Maryland 21202

United States

Manufactured by:

1. Ciprofloxacin granular blend is manufactured by- 

Lupin Limited

Goa - 403 722

INDIA.

2. Diluent is manufactured by -

Lupin Limited

Aurangabad 431 210

INDIA

Revised: August 27, 2016                                                                                              ID#: 245567

PACKAGE LABEL.PRINCIPAL DISPLAY PANEL

          Ciprofloxacin for Oral Suspension 250 mg/ 5 ml

NDC 68180-392-01

Rx only

5 g/ 100 ml

Carton label for 250 mg per 5 mL

Ciprofloxacin for Oral Suspension250 mg per 5 mL label

Diluent container label for Ciprofloxacin for Oral Suspension 250 mg per 5 mL

          Ciprofloxacin Granular Blend for Ciprofloxacin for Oral Suspension

Ciprofloxacin for Oral Suspension 500 mg/ 5 ml

NDC 68180-393-01

Rx only

10 g/ 100 ml

Ciprofloxacin for Oral Suspension 500 mg per 5 ml Carton Label

Ciprofloxacin for Oral Suspension 500 mg per 5 mL label

Container Label for Diluent - Ciprofloxacin for Oral Suspension 500 mg per 5 mL

Granular Blend for Ciprofloxacin for Oral Suspension

CIPROFLOXACIN  
ciprofloxacin kit
Product Information
Product Type HUMAN PRESCRIPTION DRUG LABEL Item Code (Source) NDC:68180-392
Packaging
# Item Code Package Description
1 NDC:68180-392-01 1 KIT in 1 KIT
Quantity of Parts
Part # Package Quantity Total Product Quantity
Part 1 1 BOTTLE 100 mL
Part 2 1 BOTTLE 74 mL
Part 1 of 2
CIPROFLOXACIN  
ciprofloxacin powder, for suspension
Product Information
     
Route of Administration ORAL DEA Schedule     
Active Ingredient/Active Moiety
Ingredient Name Basis of Strength Strength
CIPROFLOXACIN (CIPROFLOXACIN) CIPROFLOXACIN 250 mg  in 5 mL
Inactive Ingredients
Ingredient Name Strength
AMMONIUM GLYCYRRHIZATE  
CELLULOSE, MICROCRYSTALLINE  
CROSCARMELLOSE SODIUM  
DIMETHYLAMINOETHYL METHACRYLATE - BUTYL METHACRYLATE - METHYL METHACRYLATE COPOLYMER  
HYPROMELLOSES  
SILICON DIOXIDE  
SUCRALOSE  
SUCROSE  
TALC  
Product Characteristics
Color YELLOW (Light yellow to yellow) Score     
Shape Size
Flavor STRAWBERRY, MENTHOL, MINT Imprint Code
Contains         
Packaging
# Item Code Package Description
1 100 mL in 1 BOTTLE
Marketing Information
Marketing Category Application Number or Monograph Citation Marketing Start Date Marketing End Date
ANDA ANDA200563 06/06/2014
Part 2 of 2
DILUENT  
diluent suspension
Product Information
     
Route of Administration ORAL DEA Schedule     
Inactive Ingredients
Ingredient Name Strength
MEDIUM-CHAIN TRIGLYCERIDES  
POLYSORBATE 20  
Packaging
# Item Code Package Description
1 74 mL in 1 BOTTLE
Marketing Information
Marketing Category Application Number or Monograph Citation Marketing Start Date Marketing End Date
ANDA ANDA200563 06/06/2014
Marketing Information
Marketing Category Application Number or Monograph Citation Marketing Start Date Marketing End Date
ANDA ANDA200563 06/06/2014
CIPROFLOXACIN  
ciprofloxacin kit
Product Information
Product Type HUMAN PRESCRIPTION DRUG LABEL Item Code (Source) NDC:68180-393
Packaging
# Item Code Package Description
1 NDC:68180-393-01 1 KIT in 1 KIT
Quantity of Parts
Part # Package Quantity Total Product Quantity
Part 1 1 BOTTLE 100 mL
Part 2 1 BOTTLE 71 mL
Part 1 of 2
CIPROFLOXACIN  
ciprofloxacin powder, for suspension
Product Information
     
Route of Administration ORAL DEA Schedule     
Active Ingredient/Active Moiety
Ingredient Name Basis of Strength Strength
CIPROFLOXACIN (CIPROFLOXACIN) CIPROFLOXACIN 500 mg  in 5 mL
Inactive Ingredients
Ingredient Name Strength
AMMONIUM GLYCYRRHIZATE  
CELLULOSE, MICROCRYSTALLINE  
DIMETHYLAMINOETHYL METHACRYLATE - BUTYL METHACRYLATE - METHYL METHACRYLATE COPOLYMER  
HYPROMELLOSES  
SILICON DIOXIDE  
SUCRALOSE  
SUCROSE  
TALC  
Product Characteristics
Color YELLOW (Light yellow to yellow) Score     
Shape Size
Flavor STRAWBERRY, MENTHOL, MINT Imprint Code
Contains         
Packaging
# Item Code Package Description
1 100 mL in 1 BOTTLE
Marketing Information
Marketing Category Application Number or Monograph Citation Marketing Start Date Marketing End Date
ANDA ANDA200563 06/06/2014
Part 2 of 2
DILUENT  
diluent suspension
Product Information
     
Route of Administration ORAL DEA Schedule     
Inactive Ingredients
Ingredient Name Strength
MEDIUM-CHAIN TRIGLYCERIDES  
POLYSORBATE 20  
Packaging
# Item Code Package Description
1 71 mL in 1 BOTTLE
Marketing Information
Marketing Category Application Number or Monograph Citation Marketing Start Date Marketing End Date
ANDA ANDA200563 06/06/2014
Marketing Information
Marketing Category Application Number or Monograph Citation Marketing Start Date Marketing End Date
ANDA ANDA200563 06/06/2014
Labeler - Lupin Pharmaceuticals, Inc. (089153071)
Registrant - LUPIN LIMITED (675923163)
Establishment
Name Address ID/FEI Operations
LUPIN LIMITED 677600414 manufacture(68180-392, 68180-393), pack(68180-392, 68180-393)
Establishment
Name Address ID/FEI Operations
LUPIN LIMITED 862272739 manufacture(68180-392, 68180-393), pack(68180-392, 68180-393)
Revised: 08/2016
 
Lupin Pharmaceuticals, Inc.
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