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Ciprofloxacin Dosage

Medically reviewed by Drugs.com. Last updated on Aug 9, 2023.

Applies to the following strengths: 100 mg; 250 mg; 500 mg; 750 mg; 200 mg/100 mL-5%; 400 mg/200 mL-5%; 250 mg/5 mL; 500 mg/5 mL; 10 mg/mL; 1000 mg

Usual Adult Dose for Inhalation Bacillus anthracis

IV: 400 mg IV every 12 hours
Oral: 500 mg orally every 12 hours

Duration of Therapy: 60 days

Comments:


Use: For treatment of inhalational anthrax (postexposure) to reduce incidence/progression of disease after exposure to aerosolized Bacillus anthracis

US CDC Recommendations:

Duration of Therapy:
Postexposure prophylaxis for B anthracis infection: 60 days

Systemic anthrax:

Cutaneous anthrax without systemic involvement:

Comments:

Usual Adult Dose for Cutaneous Bacillus anthracis

IV: 400 mg IV every 12 hours
Oral: 500 mg orally every 12 hours

Duration of Therapy: 60 days

Comments:


Use: For treatment of inhalational anthrax (postexposure) to reduce incidence/progression of disease after exposure to aerosolized Bacillus anthracis

US CDC Recommendations:

Duration of Therapy:
Postexposure prophylaxis for B anthracis infection: 60 days

Systemic anthrax:

Cutaneous anthrax without systemic involvement:

Comments:

Usual Adult Dose for Anthrax Prophylaxis

IV: 400 mg IV every 12 hours
Oral: 500 mg orally every 12 hours

Duration of Therapy: 60 days

Comments:


Use: For treatment of inhalational anthrax (postexposure) to reduce incidence/progression of disease after exposure to aerosolized Bacillus anthracis

US CDC Recommendations:

Duration of Therapy:
Postexposure prophylaxis for B anthracis infection: 60 days

Systemic anthrax:

Cutaneous anthrax without systemic involvement:

Comments:

Usual Adult Dose for Febrile Neutropenia

Empirical therapy: 400 mg IV every 8 hours for 7 to 14 days

Comments:


Use: In combination with piperacillin, for the treatment of febrile neutropenia

Usual Adult Dose for Intraabdominal Infection

IV: 400 mg IV every 12 hours
Oral: 500 mg orally every 12 hours

Duration of Therapy: 7 to 14 days

Use: In combination with metronidazole, for treatment of complicated intraabdominal infections due to Escherichia coli, Pseudomonas aeruginosa, Proteus mirabilis, Klebsiella pneumoniae, or Bacteroides fragilis

Usual Adult Dose for Joint Infection

IV: 400 mg IV every 8 to 12 hours
Oral: 500 to 750 mg orally every 12 hours

Duration of Therapy: 4 to 8 weeks

Uses: For treatment of bone and joint infections due to Enterobacter cloacae, Serratia marcescens, or P aeruginosa

Usual Adult Dose for Osteomyelitis

IV: 400 mg IV every 8 to 12 hours
Oral: 500 to 750 mg orally every 12 hours

Duration of Therapy: 4 to 8 weeks

Uses: For treatment of bone and joint infections due to Enterobacter cloacae, Serratia marcescens, or P aeruginosa

Usual Adult Dose for Plague

IV: 400 mg IV every 8 to 12 hours
Oral: 500 to 750 mg orally every 12 hours

Duration of Therapy: 14 days

Comments:


Uses: For treatment of plague (including pneumonic and septicemic plague) due to Yersinia pestis; for prophylaxis of plague

US CDC Recommendations:
Treatment:
Duration of Therapy: 10 to 14 days, or until 2 days after fever subsides

Postexposure Prophylaxis: 500 mg orally twice a day for 7 days

Comments:

Usual Adult Dose for Plague Prophylaxis

IV: 400 mg IV every 8 to 12 hours
Oral: 500 to 750 mg orally every 12 hours

Duration of Therapy: 14 days

Comments:


Uses: For treatment of plague (including pneumonic and septicemic plague) due to Yersinia pestis; for prophylaxis of plague

US CDC Recommendations:
Treatment:
Duration of Therapy: 10 to 14 days, or until 2 days after fever subsides

Postexposure Prophylaxis: 500 mg orally twice a day for 7 days

Comments:

Usual Adult Dose for Nosocomial Pneumonia

400 mg IV every 8 hours for 10 to 14 days

Comments:


Use: For treatment of nosocomial pneumonia due to Haemophilus influenzae or K pneumoniae

Usual Adult Dose for Pneumonia

IV: 400 mg IV every 8 to 12 hours
Oral: 500 to 750 mg orally every 12 hours

Duration of Therapy: 7 to 14 days

Comments:


Uses: For treatment of lower respiratory tract infections due to E coli, K pneumoniae, E cloacae, P mirabilis, P aeruginosa, H influenzae, H parainfluenzae, or S pneumoniae; for the treatment of AECB due to Moraxella catarrhalis

Usual Adult Dose for Bronchitis

IV: 400 mg IV every 8 to 12 hours
Oral: 500 to 750 mg orally every 12 hours

Duration of Therapy: 7 to 14 days

Comments:


Uses: For treatment of lower respiratory tract infections due to E coli, K pneumoniae, E cloacae, P mirabilis, P aeruginosa, H influenzae, H parainfluenzae, or S pneumoniae; for the treatment of AECB due to Moraxella catarrhalis

Usual Adult Dose for Skin or Soft Tissue Infection

IV: 400 mg IV every 8 to 12 hours
Oral: 500 to 750 mg orally every 12 hours

Duration of Therapy: 7 to 14 days

Use: For treatment of skin and skin structure infections due to E coli, K pneumoniae, E cloacae, P mirabilis, P vulgaris, Providencia stuartii, Morganella morganii, Citrobacter freundii, P aeruginosa, Staphylococcus aureus (methicillin-susceptible), S epidermidis (methicillin-susceptible), or S pyogenes

Infectious Diseases Society of America (IDSA) Recommendations:
Incisional surgical site infection:


Aeromonas hydrophila necrotizing infection: 400 mg IV every 12 hours

Infection after animal bite:

Comments:

Some Experts Recommend:

Comments:

Usual Adult Dose for Skin and Structure Infection

IV: 400 mg IV every 8 to 12 hours
Oral: 500 to 750 mg orally every 12 hours

Duration of Therapy: 7 to 14 days

Use: For treatment of skin and skin structure infections due to E coli, K pneumoniae, E cloacae, P mirabilis, P vulgaris, Providencia stuartii, Morganella morganii, Citrobacter freundii, P aeruginosa, Staphylococcus aureus (methicillin-susceptible), S epidermidis (methicillin-susceptible), or S pyogenes

Infectious Diseases Society of America (IDSA) Recommendations:
Incisional surgical site infection:


Aeromonas hydrophila necrotizing infection: 400 mg IV every 12 hours

Infection after animal bite:

Comments:

Some Experts Recommend:

Comments:

Usual Adult Dose for Shigellosis

500 mg orally every 12 hours for 5 to 7 days

Use: When antibacterial therapy is indicated, for treatment of infectious diarrhea due to E coli (enterotoxigenic isolates), Campylobacter jejuni, Shigella boydii, S dysenteriae, S flexneri, or S sonnei

US CDC, National Institutes of Health (NIH), and HIV Medicine Association of the Infectious Diseases Society of America (HIVMA/IDSA) Recommendations for HIV-Infected Patients:
Shigellosis therapy:


Duration of Therapy:

Comments:

Usual Adult Dose for Infectious Diarrhea

500 mg orally every 12 hours for 5 to 7 days

Use: When antibacterial therapy is indicated, for treatment of infectious diarrhea due to E coli (enterotoxigenic isolates), Campylobacter jejuni, Shigella boydii, S dysenteriae, S flexneri, or S sonnei

US CDC, National Institutes of Health (NIH), and HIV Medicine Association of the Infectious Diseases Society of America (HIVMA/IDSA) Recommendations for HIV-Infected Patients:
Shigellosis therapy:


Duration of Therapy:

Comments:

Usual Adult Dose for Sinusitis

IV: 400 mg IV every 12 hours
Oral: 500 mg orally every 12 hours

Duration of Therapy: 10 days

Comments:


Use: For treatment of acute sinusitis due to H influenzae, S pneumoniae, or M catarrhalis

Usual Adult Dose for Salmonella Enteric Fever

500 mg orally every 12 hours for 10 days

Comments:


Use: For treatment of typhoid fever (enteric fever) due to Salmonella typhi

US CDC, NIH, and HIVMA/IDSA Recommendations for HIV-Infected Patients:

Duration of Salmonellosis Therapy:
For gastroenteritis without bacteremia:

For gastroenteritis with bacteremia:

Comments:

Usual Adult Dose for Salmonella Gastroenteritis

500 mg orally every 12 hours for 10 days

Comments:


Use: For treatment of typhoid fever (enteric fever) due to Salmonella typhi

US CDC, NIH, and HIVMA/IDSA Recommendations for HIV-Infected Patients:

Duration of Salmonellosis Therapy:
For gastroenteritis without bacteremia:

For gastroenteritis with bacteremia:

Comments:

Usual Adult Dose for Typhoid Fever

500 mg orally every 12 hours for 10 days

Comments:


Use: For treatment of typhoid fever (enteric fever) due to Salmonella typhi

US CDC, NIH, and HIVMA/IDSA Recommendations for HIV-Infected Patients:

Duration of Salmonellosis Therapy:
For gastroenteritis without bacteremia:

For gastroenteritis with bacteremia:

Comments:

Usual Adult Dose for Urinary Tract Infection

IV: 200 to 400 mg IV every 8 to 12 hours for 7 to 14 days

Oral:
Immediate-release: 250 to 500 mg orally every 12 hours for 7 to 14 days

Extended-release:


Uses:

Usual Adult Dose for Pyelonephritis

Cipro(R) XR: 1000 mg orally every 24 hours for 7 to 14 days

Use: For the treatment of acute uncomplicated pyelonephritis due to E coli

Usual Adult Dose for Cystitis

Immediate-release: 250 mg orally every 12 hours
Extended-release: 500 mg orally every 24 hours

Duration of Therapy: 3 days

Comments:


Uses:

Usual Adult Dose for Prostatitis

IV: 400 mg IV every 12 hours
Oral: 500 mg orally every 12 hours

Duration of Therapy: 28 days

Use: For treatment of chronic bacterial prostatitis due to E coli or P mirabilis

Usual Adult Dose for Gonococcal Infection - Uncomplicated

250 mg orally once

Uses: For treatment of uncomplicated urethral and cervical gonorrhea due to Neisseria gonorrhoeae

US CDC Recommendations:

Usual Adult Dose for Meningococcal Meningitis Prophylaxis

US CDC Recommendations: 500 mg orally once

Usual Adult Dose for Tularemia

IDSA Recommendations:


Working Group on Civilian Biodefense Recommendations for Management of Tularemia Used as a Biological Weapon:

Comments:

Usual Adult Dose for Chancroid

US CDC Recommendations: 500 mg orally twice a day for 3 days

Comments:

Usual Adult Dose for Granuloma Inguinale

US CDC Recommendations: 750 mg orally twice a day
Duration of Therapy: At least 3 weeks and until all lesions have completely healed

Comments:

Usual Adult Dose for Surgical Prophylaxis

American Society of Health-System Pharmacists (ASHP), IDSA, Surgical Infection Society (SIS), and Society for Healthcare Epidemiology of America (SHEA) Recommendations:


Comments:

Uses: For surgical prophylaxis for the following procedures:

Usual Pediatric Dose for Inhalation Bacillus anthracis

IV: 10 mg/kg IV every 12 hours
Maximum dose: 400 mg/dose

Oral: 15 mg/kg orally every 12 hours
Maximum dose: 500 mg/dose

Recommended dose of the 5% oral suspension using the co-packaged graduated spoon:


Recommended dose of the 10% oral suspension using the co-packaged graduated spoon:

Total Duration of Therapy: 60 days

Comments:

Use: For treatment of inhalational anthrax (postexposure) to reduce incidence/progression of disease after exposure to aerosolized B anthracis

American Academy of Pediatrics Recommendations:
Up to 4 weeks of age:

1 month or older:
IV: 10 mg/kg IV every 8 hours
Maximum dose: 400 mg/dose

Oral: 15 mg/kg orally every 12 hours
Maximum dose: 500 mg/dose

Duration of Therapy:
Postexposure prophylaxis for B anthracis infection (all ages): 60 days after exposure

Systemic anthrax:

Cutaneous anthrax without systemic involvement:

Follow-up for severe anthrax: To complete a regimen of 10 to 14 days or longer (up to 4 weeks of age) or to complete a regimen of 14 days or longer (1 month or older)

Comments:

Usual Pediatric Dose for Cutaneous Bacillus anthracis

IV: 10 mg/kg IV every 12 hours
Maximum dose: 400 mg/dose

Oral: 15 mg/kg orally every 12 hours
Maximum dose: 500 mg/dose

Recommended dose of the 5% oral suspension using the co-packaged graduated spoon:


Recommended dose of the 10% oral suspension using the co-packaged graduated spoon:

Total Duration of Therapy: 60 days

Comments:

Use: For treatment of inhalational anthrax (postexposure) to reduce incidence/progression of disease after exposure to aerosolized B anthracis

American Academy of Pediatrics Recommendations:
Up to 4 weeks of age:

1 month or older:
IV: 10 mg/kg IV every 8 hours
Maximum dose: 400 mg/dose

Oral: 15 mg/kg orally every 12 hours
Maximum dose: 500 mg/dose

Duration of Therapy:
Postexposure prophylaxis for B anthracis infection (all ages): 60 days after exposure

Systemic anthrax:

Cutaneous anthrax without systemic involvement:

Follow-up for severe anthrax: To complete a regimen of 10 to 14 days or longer (up to 4 weeks of age) or to complete a regimen of 14 days or longer (1 month or older)

Comments:

Usual Pediatric Dose for Anthrax Prophylaxis

IV: 10 mg/kg IV every 12 hours
Maximum dose: 400 mg/dose

Oral: 15 mg/kg orally every 12 hours
Maximum dose: 500 mg/dose

Recommended dose of the 5% oral suspension using the co-packaged graduated spoon:


Recommended dose of the 10% oral suspension using the co-packaged graduated spoon:

Total Duration of Therapy: 60 days

Comments:

Use: For treatment of inhalational anthrax (postexposure) to reduce incidence/progression of disease after exposure to aerosolized B anthracis

American Academy of Pediatrics Recommendations:
Up to 4 weeks of age:

1 month or older:
IV: 10 mg/kg IV every 8 hours
Maximum dose: 400 mg/dose

Oral: 15 mg/kg orally every 12 hours
Maximum dose: 500 mg/dose

Duration of Therapy:
Postexposure prophylaxis for B anthracis infection (all ages): 60 days after exposure

Systemic anthrax:

Cutaneous anthrax without systemic involvement:

Follow-up for severe anthrax: To complete a regimen of 10 to 14 days or longer (up to 4 weeks of age) or to complete a regimen of 14 days or longer (1 month or older)

Comments:

Usual Pediatric Dose for Pyelonephritis

1 year or older:
IV: 6 to 10 mg/kg IV every 8 hours
Maximum dose: 400 mg/dose

Oral: 10 to 20 mg/kg orally every 12 hours
Maximum dose: 750 mg/dose

Recommended dose of the 5% oral suspension using the co-packaged graduated spoon:


Recommended dose of the 10% oral suspension using the co-packaged graduated spoon:

Total Duration of Therapy: 10 to 21 days

Comments:

Uses: For treatment of complicated UTIs and pyelonephritis due to E coli

Usual Pediatric Dose for Urinary Tract Infection

1 year or older:
IV: 6 to 10 mg/kg IV every 8 hours
Maximum dose: 400 mg/dose

Oral: 10 to 20 mg/kg orally every 12 hours
Maximum dose: 750 mg/dose

Recommended dose of the 5% oral suspension using the co-packaged graduated spoon:


Recommended dose of the 10% oral suspension using the co-packaged graduated spoon:

Total Duration of Therapy: 10 to 21 days

Comments:

Uses: For treatment of complicated UTIs and pyelonephritis due to E coli

Usual Pediatric Dose for Plague

IV: 10 mg/kg IV every 8 to 12 hours
Maximum dose: 400 mg/dose

Oral: 15 mg/kg orally every 8 to 12 hours
Maximum dose: 500 mg/dose

Recommended dose of the 5% oral suspension using the co-packaged graduated spoon:

Maximum dose: 1500 mg/day

Recommended dose of the 10% oral suspension using the co-packaged graduated spoon:
Maximum dose: 1500 mg/day

Total Duration of Therapy: 10 to 21 days

Comments:

Uses: For treatment of plague (including pneumonic and septicemic plague) due to Y pestis; for prophylaxis of plague

US CDC Recommendations:
Treatment:
Duration of Therapy: 10 to 14 days, or until 2 days after fever subsides

Postexposure Prophylaxis: 20 mg/kg orally twice a day for 7 days

Comments:

Usual Pediatric Dose for Plague Prophylaxis

IV: 10 mg/kg IV every 8 to 12 hours
Maximum dose: 400 mg/dose

Oral: 15 mg/kg orally every 8 to 12 hours
Maximum dose: 500 mg/dose

Recommended dose of the 5% oral suspension using the co-packaged graduated spoon:

Maximum dose: 1500 mg/day

Recommended dose of the 10% oral suspension using the co-packaged graduated spoon:
Maximum dose: 1500 mg/day

Total Duration of Therapy: 10 to 21 days

Comments:

Uses: For treatment of plague (including pneumonic and septicemic plague) due to Y pestis; for prophylaxis of plague

US CDC Recommendations:
Treatment:
Duration of Therapy: 10 to 14 days, or until 2 days after fever subsides

Postexposure Prophylaxis: 20 mg/kg orally twice a day for 7 days

Comments:

Usual Pediatric Dose for Tularemia

Working Group on Civilian Biodefense Recommendations for Management of Tularemia Used as a Biological Weapon:


Comments:

Usual Pediatric Dose for Surgical Prophylaxis

ASHP, IDSA, SIS, and SHEA Recommendations:
1 year or older:
Preoperative dose: 10 mg/kg IV once, starting within 120 minutes before surgical incision
Maximum dose: 400 mg/dose

Comments:


Uses: For surgical prophylaxis for the following procedures:

Usual Pediatric Dose for Shigellosis

US CDC, NIH, and HIVMA/IDSA Recommendations for HIV-Infected Adolescents:
Shigellosis therapy:


Duration of Therapy:

Comments:

Usual Pediatric Dose for Salmonella Enteric Fever

US CDC, NIH, and HIVMA/IDSA Recommendations for HIV-Infected Adolescents:


Duration of Salmonellosis Therapy:
For gastroenteritis without bacteremia:

For gastroenteritis with bacteremia:

Comments:

Usual Pediatric Dose for Salmonella Gastroenteritis

US CDC, NIH, and HIVMA/IDSA Recommendations for HIV-Infected Adolescents:


Duration of Salmonellosis Therapy:
For gastroenteritis without bacteremia:

For gastroenteritis with bacteremia:

Comments:

Usual Pediatric Dose for Pneumonia with Cystic Fibrosis

Study (n=67)
5 years or older: 10 mg/kg IV every 8 hours for 1 week followed by 20 mg/kg orally every 12 hours
Total Duration of Therapy: 10 to 21 days

Comments:

Renal Dose Adjustments

Adult Patients:
IV:


Oral:
Immediate-release:

Extended-release:
Cipro(R) XR:

Proquin(R) XR:

Pediatric Patients:

Comments:

Liver Dose Adjustments

Data not available

Precautions

US BOXED WARNING:
SERIOUS SIDE EFFECTS INCLUDING TENDINITIS, TENDON RUPTURE, PERIPHERAL NEUROPATHY, CNS EFFECTS, AND EXACERBATION OF MYASTHENIA GRAVIS:


CONTRAINDICATIONS:
History of hypersensitivity to the active component, other quinolones, or any of the ingredients; coadministration with tizanidine

Extended-release tablets: Safety and efficacy have not been established in patients younger than 18 years.

Consult WARNINGS section for additional precautions.

Dialysis

Hemodialysis, peritoneal dialysis:
Adult Patients:
IV: Data not available

Oral:
Immediate-release: 250 to 500 mg orally every 24 hours

Extended-release:


Pediatric Patients: Data not available

Comments:

Other Comments

Administration advice:


Storage requirements:

Reconstitution/preparation techniques:

General:

Monitoring:

Patient advice:

Frequently asked questions

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.