Amoxicillin

Rx onlyWHO Essential

Common antibiotic for bacterial infections.

Broad-spectrum penicillin antibiotic.

Generic name

Amoxicillin

Drug class

Penicillins

ATC code

J01CA04

Pregnancy

Ask your doctor

Prescription

Required

Last updated

2026-01-15

Available forms

CapsuleTabletSuspensionInjection

Uses

Ear infection
Chest infection
Dental infection
UTI
Sinusitis

How it works

Kills bacteria by breaking down their protective walls.

Medical: Inhibits penicillin-binding proteins, disrupting cell wall synthesis.

Common brand names

Amoxil

India

Mox, Novamox

Typical dosage

adults250–500 mg every 8 hours.

children20–40 mg/kg/day divided into 3 doses.

Educational only. Never adjust dosage without medical guidance.

Side effects

Very common

—

Common

· Diarrhea
· Nausea
· Rash

Rare

—

Serious

· Severe allergic reaction (anaphylaxis)

Warnings

Do not use if allergic to penicillin
Complete the full course

Interactions

Medicine

Methotrexate, Oral contraceptives (mild effect)

Where you usually see it

PharmaciesGP clinicsPediatric clinicsDental clinics

Timeline

1972
Approved for medical use.

Fun facts

· One of the most prescribed antibiotics in the world.

Conditions it treats

Bacterial Infection

Related medicines

Azithromycin

Antibiotic often given as a short course.

Compare

See how Amoxicillin stacks up next to another medicine.

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Frequently asked

Do I finish the course?

Yes — even if you feel better, complete the prescribed course.

Can I drink alcohol?

Alcohol doesn't stop it from working but can worsen side effects.

Educational use only.This information is for educational purposes only and should not replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional before starting, stopping, or changing any medication.