Moxatag Side Effects

Generic Name: amoxicillin

Note: This page contains side effects data for the generic drug amoxicillin. It is possible that some of the dosage forms included below may not apply to the brand name Moxatag.

It is possible that some side effects of Moxatag may not have been reported. These can be reported to the FDA here. Always consult a healthcare professional for medical advice.

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

As well as its needed effects, amoxicillin (the active ingredient contained in Moxatag) may cause unwanted side effects that require medical attention.

If any of the following side effects occur while taking amoxicillin, check with your doctor immediately:

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

Some amoxicillin side effects may not need any medical attention. As your body gets used to the medicine these side effects may disappear. Your health care professional may be able to help you prevent or reduce these side effects, but do check with them if any of the following side effects continue, or if you are concerned about them:

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

Hypersensitivity

Hypersensitivity reactions are more likely in patients with a history of allergy, asthma, hay fever, or urticaria.

Hypersensitivity reactions have been reported in up to 10% of patients and have included anaphylaxis, urticarial rash, erythematous maculopapular rash, serum sickness-like reactions, erythema multiforme, urticaria, edema, hypotension, fever, eosinophilia, exfoliative dermatitis, toxic epidermal necrolysis, acute generalized exanthematous pustulosis, hypersensitivity vasculitis, angioedema, Stevens-Johnson syndrome, and dyspnea.

Dermatologic

Dermatologic side effects have included rash, fixed drug eruption, and bullous pemphigoid. Erythematous maculopapular rashes occur frequently in patients with infectious mononucleosis who take amoxicillin (the active ingredient contained in Moxatag) these may be due to hypersensitivity.

Three out of four patients with infectious mononucleosis and an amoxicillin-associated rash displayed hypersensitivity to amoxicillin and ampicillin by skin tests and lymphocyte transformation tests. Two of these patients had side-chain-specific sensitization.

Gastrointestinal

Gastrointestinal side effects have included diarrhea, nausea, vomiting, generalized abdominal cramps, colitis, hemorrhagic colitis, pseudomembranous colitis (Clostridium difficile associated diarrhea), and black hairy tongue. Abdominal pain has also been reported.

Amoxicillin has been associated with hemorrhagic, sometimes inflammatory colitis, which typically affects the ascending colon. Clostridium difficile pseudomembranous colitis has been reported.

Renal

Renal side effects have included crystalluria and acute interstitial nephritis, often associated with fever, rash and eosinophilia.

Hematologic

A patient undergoing dental extraction and receiving warfarin anticoagulation therapy had prolonged bleeding times (PT and INR), and decreased hemoglobin and hematocrit. The bleeding was felt due to vitamin K deficiency as a result of depletion of intrinsic vitamin K-producing gut flora from use of amoxicillin (the active ingredient contained in Moxatag) for prophylaxis of subacute bacterial endocarditis.

Hematologic side effects associated with penicillins have included thrombocytopenia, anemia, leukopenia, thrombocytopenic purpura, agranulocytosis, hemolytic anemia, eosinophilia, and granulocytopenia. These effects are usually reversible and are believed to be due to hypersensitivity reactions.

Immunologic

Immunologic side effects have included mucocutaneous candidiasis and vulvovaginal mycotic infection.

Nervous system

Nervous system side effects have rarely included headache, somnolence, dizziness, reversible hyperactivity, agitation, anxiety, insomnia, confusion, convulsions, behavioral changes, and aseptic meningitis. Rare cases of psychosis associated with amoxicillin (the active ingredient contained in Moxatag) therapy have been reported but may have been due to underlying infection or concomitant medication.

Hepatic

Hepatic side effects have included moderate elevations of AST (SGOT) and/or ALT (SGPT) levels, cholestatic jaundice, hepatic cholestasis, and acute cytolytic hepatitis.

Other

Other side effects have rarely included brown, yellow, or gray tooth discoloration, primarily in pediatric patients. Brushing or dental cleaning reduced or eliminated the discoloration in most cases.

Respiratory

Respiratory side effects have included cough and rhinorrhea.

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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