About amoxicillin
Penicillin antibiotic
Used for
- Treats susceptible bacterial infections, including ear, throat, chest, and urinary infections.
- Does not treat viral infections such as colds or flu.
Usual adult dose
Usually 500 mg every 8 hours or 875 mg every 12 hours; depends on infection.
Usual dose in children
Usually 20–45 mg/kg/day in divided doses every 8–12 hours; depends on infection and age.
Common side effects
- Nausea, vomiting, or diarrhea
- Skin rash
- Thrush
- Rare severe allergic reaction
Important warnings
- Avoid with serious penicillin allergy; seek urgent care for breathing difficulty or facial swelling.
- Antibiotic-associated severe or persistent diarrhea can occur, sometimes after treatment ends.
- Dose adjustments may be needed with kidney disease.
- Complete the prescribed course unless a clinician changes it.
Pregnancy
Generally considered acceptable when clinically needed; use under healthcare professional guidance.
Breastfeeding
Usually compatible; occasional infant diarrhea, rash, or thrush may occur.
Interactions
- Warfarin and related anticoagulants: may alter clotting measurements.
- Allopurinol: may increase risk of skin rash.
- Probenecid: can increase amoxicillin levels.
- Methotrexate: amoxicillin may increase methotrexate exposure.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.