Azathioprine Side Effects in Pakistan

A complete guide to the side effects of Azathioprine. From common effects to serious warnings — everything you need to know is on this page.

Compiled by the PakVita Editorial Team · AI-assisted drafting with editorial review · Sourced from DRAP, WHO, BNF · Last updated: 2026-07-09

Side Effects

Quick Answer

Common side effects of Azathioprine include nausea, vomiting, and loss of appetite. Serious effects such as bone marrow suppression or serious infection require immediate medical attention. Regular blood count monitoring is mandatory during treatment. Contact your doctor if any side effect persists or worsens.

Side Effects at a Glance

Common

Nausea
Vomiting
Loss of appetite

Serious — See a Doctor

Bone marrow suppression (leukopenia, thrombocytopenia, anaemia)
Serious infections due to immunosuppression
Risk of malignancy (lymphoma) with long-term use

When to See a Doctor Immediately

Fever, chills, or signs of infection (sore throat, mouth ulcers) — seek immediate attention
Unusual bruising, bleeding, or persistent fatigue (may indicate bone marrow suppression)
Yellowing of skin or eyes (jaundice) — seek emergency care immediately

Azathioprine Side Effects (Nuksanat)

Azathioprine (azathioprine) is a powerful immunosuppressant. Its most serious risks are bone marrow suppression and increased infection susceptibility, which is why regular blood monitoring is mandatory.

Common Side Effects (Aam Nuksanat)

Nausea
Vomiting
Loss of appetite

Taking Azathioprine with food can reduce these effects. Inform your doctor if they continue or are severe.

Serious Side Effects (Sanjeedah Nuksanat)

Bone marrow suppression (leukopenia, thrombocytopenia, anaemia) — see a doctor immediately
Serious infections due to immunosuppression — see a doctor immediately
Risk of malignancy (lymphoma) with long-term use — discuss with your specialist

When to See a Doctor (Kab Doctor Se Milna Zaroori Hai)

Fever, chills, or signs of infection (sore throat, mouth ulcers) — seek immediate attention
Unusual bruising, bleeding, or persistent fatigue (may indicate bone marrow suppression)
Yellowing of skin or eyes (jaundice) — seek emergency care immediately

Warnings and Precautions (Ihtiyat)

Do not use Azathioprine if you are allergic to azathioprine or any ingredient
Regular full blood count monitoring is mandatory — do not miss scheduled blood tests
Do not take allopurinol with azathioprine without specialist guidance

Side Effects Summary Table

Type	Side Effect	Action
Common	Nausea	Take with food; inform doctor
Common	Vomiting	Take with food; inform doctor
Common	Loss of appetite	Monitor / inform doctor
Serious	Bone marrow suppression	See a doctor immediately
Serious	Serious infections	See a doctor immediately

Reporting Side Effects

If you notice any unexpected side effect, report it on the DRAP pharmacovigilance portal: https://www.dra.gov.pk/pharmacovigilance

The information in this guide is for educational purposes only. If you notice any side effect, contact your doctor or pharmacist.

Frequently Asked Questions

What are the most common side effects of Azathioprine?

The most commonly reported side effects of Azathioprine include nausea, vomiting, and loss of appetite. Taking it with food can help reduce these. Inform your doctor if they persist or are severe.

Can Azathioprine cause allergic reactions?

Yes, Azathioprine can cause hypersensitivity reactions in some people. Signs include rash, fever, or difficulty breathing. Stop use and seek medical help immediately if this happens.

Is Azathioprine safe to take for a long time?

Long-term use of Azathioprine is common but requires regular blood count and liver function monitoring. Long-term use is associated with a small increased risk of certain cancers — your specialist will weigh this against the benefits for your condition.

What should I do if I experience side effects from Azathioprine?

For mild side effects like nausea, inform your doctor. For serious effects such as fever, unusual bruising, or jaundice, stop the medicine and go to the nearest hospital immediately.

Does Azathioprine affect the liver or kidneys?

Azathioprine can affect liver function. Regular liver function tests are recommended during treatment. Your doctor will advise based on your test results and overall health condition.

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Sources

DRAP Registered Products Database — Drug Regulatory Authority of Pakistan
WHO Model List of Essential Medicines, 23rd ed. (2023) — World Health Organization
British National Formulary (BNF) — BMJ Group & Pharmaceutical Press

Medical disclaimer

This page is for educational use only and does not replace professional medical advice. Always confirm diagnosis, dose, and interactions with a qualified doctor or pharmacist before starting or changing any medicine.