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Biomox Side Effects

Generic Name: amoxicillin

Note: This page contains information about the side effects of amoxicillin. Some of the dosage forms included on this document may not apply to the brand name Biomox.

For the Consumer

Applies to amoxicillin: oral capsule, oral powder for suspension, oral tablet, oral tablet for suspension, oral tablet chewable, oral tablet extended release

In addition to its needed effects, some unwanted effects may be caused by amoxicillin (the active ingredient contained in Biomox). In the event that any of these side effects do occur, they may require medical attention.

Major Side Effects

You should check with your doctor immediately if any of these side effects occur when taking amoxicillin:

Incidence not known:
  • Abdominal or stomach cramps or tenderness
  • back, leg, or stomach pains
  • black, tarry stools
  • bleeding gums
  • blistering, peeling, or loosening of the skin
  • bloating
  • blood in the urine
  • bloody nose
  • chest pain
  • chills
  • clay-colored stools
  • cough
  • dark urine
  • diarrhea
  • diarrhea, watery and severe, which may also be bloody
  • difficulty with breathing
  • difficulty with swallowing
  • dizziness
  • fast heartbeat
  • feeling of discomfort
  • fever
  • general body swelling
  • headache
  • heavier menstrual periods
  • hives or welts
  • increased thirst
  • inflammation of the joints
  • itching
  • joint or muscle pain
  • loss of appetite
  • muscle aches
  • nausea or vomiting
  • nosebleeds
  • pain
  • pain in the lower back
  • pain or burning while urinating
  • painful or difficult urination
  • pale skin
  • pinpoint red spots on the skin
  • puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue
  • rash
  • red, irritated eyes
  • redness, soreness, or itching skin
  • shortness of breath
  • sore throat
  • sores, ulcers, or white spots in the mouth or on the lips
  • sores, welting, or blisters
  • sudden decrease in the amount of urine
  • swollen, lymph glands
  • tenderness
  • tightness in the chest
  • unpleasant breath odor
  • unusual bleeding or bruising
  • unusual tiredness or weakness
  • unusual weight loss
  • vomiting of blood
  • watery or bloody diarrhea
  • wheezing
  • yellow eyes or skin

Minor Side Effects

Some of the side effects that can occur with amoxicillin may not need medical attention. As your body adjusts to the medicine during treatment these side effects may go away. Your health care professional may also be able to tell you about ways to reduce or prevent some of these side effects. If any of the following side effects continue, are bothersome or if you have any questions about them, check with your health care professional:

Less common:
  • Bad, unusual, or unpleasant (after) taste
  • change in taste
Incidence not known:
  • Agitation
  • black, hairy tongue
  • changes in behavior
  • confusion
  • convulsions
  • discoloration of the tooth (brown, yellow, or gray staining)
  • dizziness
  • sleeplessness
  • trouble with sleeping
  • unable to sleep
  • white patches in the mouth or throat or on the tongue
  • white patches with diaper rash

For Healthcare Professionals

Applies to amoxicillin: oral capsule, oral powder for reconstitution, oral tablet, oral tablet chewable, oral tablet dispersible, oral tablet extended release

General

The most frequently reported side effects were diarrhea, nausea, and skin rash.[Ref]

Gastrointestinal

Common (1% to 10%): Diarrhea, nausea, abdominal pain
Uncommon (0.1% to 1%): Vomiting
Frequency not reported: Hemorrhagic/pseudomembranous colitis, tooth discolored, black hairy tongue, glossitis, stomatitis
Postmarketing reports: Sore mouth/tongue[Ref]

Dermatologic

Common (1% to 10%): Erythema, exanthema, rash
Uncommon (0.1% to 1%): Urticaria, pruritus
Very rare (less than 0.01%): Angioedema, hypersensitivity vasculitis
Frequency not reported: Erythematous maculopapular rashes, erythema multiforme, Stevens-Johnson Syndrome, bullous dermatitis, exfoliative dermatitis, toxic epidermal necrolysis/Lyell's syndrome, acute generalized exanthematous pustulosis, maculopapular rash, erythema nodosum, pemphigoid reactions[Ref]

Genitourinary

Common (1% to 10%): Vulvovaginal mycotic infection[Ref]

Nervous system

Common (1% to 10%): Headache, taste perversion
Very rare (less than 0.01%): Convulsion, dizziness, hyperkinesia
Frequency not reported: Reversible hyperactivity, central nervous system toxicity, encephalopathy[Ref]

Immunologic

Very rare (less than 0.01%): Anaphylaxis, serum sickness-like reaction
Frequency not reported: Jarisch-Herxheimer reaction[Ref]

Renal

Very rare (less than 0.01%): Crystalluria, interstitial nephritis
Frequency not reported: Nephropathy[Ref]

Hematologic

Very rare (less than 0.01%): Leucopenia, severe neutropenia, agranulocytosis, hemolytic anemia, thrombocytopenia, bleeding time prolonged, prothrombin time prolonged
Frequency not reported: Anemia, thrombocytopenic purpura, eosinophilia, platelet function defective, lymphadenopathy[Ref]

Other

Common (1% to 10%): Candidiasis, fungal/mycotic infection
Very rare (less than 0.01%): Mucocutaneous candidiasis
Frequency not reported: Intestinal candidiasis, oral moniliasis, vaginal moniliasis, fever, chills[Ref]

Hepatic

Very rare (less than 0.01%): Hepatitis, cholestatic jaundice, AST increased, ALT increased
Frequency not reported: Hepatic dysfunction, hepatic cholestasis, acute cytolytic hepatitis[Ref]

Respiratory

Frequency not reported: Bronchospasm, acute severe dyspnea, pneumonitis allergic[Ref]

Local

Frequency not reported: Phlebitis, injection site pain[Ref]

Metabolic

Frequency not reported: Electrolyte disturbance, hypokalemia[Ref]

Musculoskeletal

Frequency not reported: Joint pain, arthralgia[Ref]

Psychiatric

Frequency not reported: Agitation, anxiety, insomnia, confusion, behavior changed, hallucination[Ref]

References

1. Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0

2. "Product Information. Moxatag (amoxicillin)." Fera Pharmaceuticals, Locust Valley, NY.

3. Cerner Multum, Inc. "Australian Product Information." O 0

4. "Product Information. Amoxil (amoxicillin)." SmithKline Beecham, Philadelphia, PA.

Not all side effects for Biomox may be reported. You should always consult a doctor or healthcare professional for medical advice. Side effects can be reported to the FDA here.

Disclaimer: Every effort has been made to ensure that the information provided is accurate, up-to-date and complete, but no guarantee is made to that effect. In addition, the drug information contained herein may be time sensitive and should not be utilized as a reference resource beyond the date hereof. This material does not endorse drugs, diagnose patients, or recommend therapy. This information is a reference resource designed as supplement to, and not a substitute for, the expertise, skill , knowledge, and judgement of healthcare practitioners in patient care. The absence of a warning for a given drug or combination thereof in no way should be construed to indicate safety, effectiveness, or appropriateness for any given patient. Drugs.com does not assume any responsibility for any aspect of healthcare administered with the aid of materials provided. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the substances you are taking, check with your doctor, nurse, or pharmacist.

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