Azithromycin

A macrolide given once daily. First-line oral treatment for uncomplicated typhoid in Pakistan, including XDR typhoid.

Macrolide antibioticReviewed October 2026

Common brands in Pakistan: Azomax, Zithromax. Brand availability changes; check with your pharmacy.

On this page

Uses

  • Uncomplicated typhoid, including XDR typhoid.
  • Dysentery (Shigella, Campylobacter) and cholera.
  • Atypical pneumonia, whooping cough.
  • Chlamydia.

Adult dose

IndicationDose
Typhoid (uncomplicated)1 g orally once daily for 7 days (or 1 g on day 1 then 500 mg daily for 6 days, per local protocol)
Dysentery500 mg once daily for 3 days, or 1 g single dose
Cholera1 g single dose
Atypical pneumonia500 mg once daily for 3 days
Chlamydia1 g single dose (doxycycline is preferred where possible)

Children's dose

IndicationDose
Typhoid20 mg/kg once daily (max 1 g) for 7 days
Dysentery10–20 mg/kg once daily for 3 days
Cholera20 mg/kg single dose (max 1 g)
Whooping cough10 mg/kg once daily for 3 days (5 days in infants per protocol)

Kidney and liver

  • No adjustment for mild to moderate kidney impairment.
  • Use with caution in liver disease.

Pregnancy and breastfeeding

Generally considered acceptable when benefits outweigh risks.

Side effects and cautions

  • Nausea, diarrhoea, abdominal pain.
  • QT prolongation: caution with other QT-prolonging drugs and low potassium or magnesium.
  • Interactions with warfarin.

Frequently asked questions

What is the azithromycin dose for typhoid in adults?

Typically 1 g once daily for 7 days, following local XDR typhoid guidance.

What is the azithromycin dose for typhoid in children?

20 mg/kg once daily (maximum 1 g) for 7 days.

Used in these guides

Sources

  1. Drugs.com: Azithromycin dosage
  2. WHO fact sheet: Typhoid

Doses on this page are typical doses from the sources above. Always confirm with a current drug reference, the product leaflet and your hospital protocol, especially in children, pregnancy and kidney or liver disease.

For FCPS Part 1

Revising for FCPS Part 1? Azithromycin is covered in our textbook chapter Antibacterial drugs, with practice MCQs.