Amoxicillin

Amoxicillin

Antibiotics Prescription only ATC code: J01CA04

Prescription status is set country by country — the label where you live is the one that applies.

Beta: the medication section is still being tested, and its data may contain errors. Do not rely on it for a decision about your own treatment.

What it is

Amoxicillin is an antibiotic of the penicillin family. It prevents susceptible bacteria from building their cell wall, so they cannot divide and are destroyed. It is prescribed for bacterial infections and does nothing against viral illness.

Typical dose
500–1000 mg
3× a day

A usual adult range, not a national label — the dose and the timing differ by country and by product.

Used for

  • Bacterial infection

Approved uses differ by country — some of these may be off-label or unapproved where you live.

What to know while taking it

It works with food or without, so meals can be arranged for comfort. The course is finished as prescribed even after the symptoms settle, because stopping early leaves the hardier bacteria behind. Like other broad antibiotics it disturbs the gut flora, which is why loose stools are common during a course and why probiotics are spaced a few hours away from it rather than swallowed together. Alongside the anticoagulant warfarin the blood-thinning effect can strengthen, so clotting is watched more closely. A known penicillin allergy rules this drug out entirely, and that history is worth stating before any prescription.

When to see a doctor

Rash, hives, swelling of the face, lips or throat, or difficulty breathing suggest an allergic reaction and need urgent medical attention. Watery or bloody diarrhoea that persists or appears after the course has ended, or a fever that fails to improve, also means see a doctor.

Worth knowing

  • Finish the full course
  • Take probiotics a few hours apart
  • Penicillin allergy is a contraindication

Interacts with

Nutrients affected

  • vitaminB9 — depleted by (Folate, Hemoglobin, Homocysteine)

Reference information, not medical advice. Discuss any change with your doctor.