Azax 500

Tablet · Sun Pharma
PRESCRIPTION MEDICINE

Azax 500 is a tablet made by Sun Pharma that contains Azithromycin 500 mg. Azithromycin is a antibiotic (macrolide): treats chest, throat, ear, skin and some sexually transmitted infections.

Ingredient (salt)Amount
Azithromycin500 mg

What it is used for

Treats chest, throat, ear, skin and some sexually transmitted infections.

How it works

A macrolide antibiotic that stops bacteria making proteins. It stays in the tissues for days, so courses are short (often 3 to 5 days).

How to take it

Usually 500 mg once a day for 3 days, or 500 mg then 250 mg for 4 days. Tablets can be taken with or without food; take the liquid on an empty stomach.

Common side effects

  • Diarrhoea
  • Nausea
  • Stomach pain
  • Headache

Get medical help straight away if

  • Fast or irregular heartbeat or fainting
  • Yellow skin
  • Severe diarrhoea
  • Allergic reaction

Be careful

Finish the course. Can affect heart rhythm in some people.

Other medicines and interactions

Raises risk of heart rhythm problems with other QT-prolonging medicines (some antiarrhythmics, antipsychotics, ondansetron). Aluminium or magnesium antacids reduce absorption.

Pregnancy and breastfeeding

Can be used in pregnancy and breastfeeding when needed.

Same composition, other brands (10)

Azithral 500Azee 500Zathrin 500Azikem 500Azicip 500Aziwok-500Zady-500Azibact-500Azilide-500Azifast 500

Ask your doctor or pharmacist before switching brands.

Same ingredients, different strength or form

Azithral 250Azee 250Azax 250

Common questions

What is Azax 500?

Azax 500 is a tablet by Sun Pharma containing Azithromycin 500 mg.

What is Azax 500 used for?

Treats chest, throat, ear, skin and some sexually transmitted infections.

How should I take Azax 500?

Usually 500 mg once a day for 3 days, or 500 mg then 250 mg for 4 days. Tablets can be taken with or without food; take the liquid on an empty stomach. Always follow the dose your doctor or the pack gives.

What are the side effects of Azax 500?

Common side effects include: Diarrhoea, nausea, stomach pain, headache. Get medical help straight away for: Fast or irregular heartbeat or fainting, yellow skin, severe diarrhoea, allergic reaction.

Does Azax 500 need a prescription?

Yes. In India it is a prescription (Schedule H) medicine, so a pharmacist should sell it only with a doctor's prescription.

Can I take Azax 500 in pregnancy or while breastfeeding?

Can be used in pregnancy and breastfeeding when needed.

What are the substitutes for Azax 500?

Brands with the same composition: Azithral 500, Azee 500, Zathrin 500, Azikem 500, Azicip 500, Aziwok-500, Zady-500, Azibact-500, Azilide-500, Azifast 500. Ask your doctor or pharmacist before switching.

Sources and further reading

NHS (UK National Health Service) and MedlinePlus (US National Library of Medicine) are free, reviewed medicine guides. Brand names and doses there may differ from India.

Composition checked against pack details from large Indian online pharmacies. Last reviewed 31 October 2026. Written by Satya Babu.

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For information only, not medical advice. This page is a plain-language summary written from standard prescribing information and the public guides linked below. Brands sometimes change their formula, so always check the composition printed on the pack. Doses here are typical adult doses; yours may differ. Do not start, stop or change a medicine without your doctor or pharmacist, and keep all medicines away from children. In an emergency, call 112 (India) or your local emergency number.