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Azathioprine: uses, side effects & brands
Azathioprine suppresses the immune system in autoimmune disease and after transplants. It belongs to the Immunosuppressant / DMARD group. These calm an overactive immune system in autoimmune diseases and after transplants.
Drug type — dosing is set by your doctor
| Measure | Range |
|---|---|
| Drug class | Immunosuppressant / DMARD |
| Type | Prescription |
| Dose | Individual — ask your doctor or pharmacist |
What it is used for
- Prevents rejection after organ transplants
- Treats autoimmune diseases such as lupus and autoimmune hepatitis
- Used in inflammatory bowel disease to reduce steroid use
- Treats some severe skin and arthritis conditions
Common brand names
- India: Imuran, Azoran, Azophar
- Worldwide: Imuran, Azasan
Common side effects
- Nausea
- Low white blood cell count
- Increased risk of infections
- Tiredness
Before taking it — precautions
- A TPMT blood test may be done first, and regular blood tests are needed
- Tell your doctor if you take allopurinol or febuxostat for gout, as they interact dangerously
- Avoid live vaccines and protect skin from the sun
When to see a doctor urgently
- Fever, sore throat or signs of infection (urgent)
- Unusual bruising or bleeding (urgent)
- Yellow skin or eyes, or severe tummy pain
Not a prescription — no dose shown. The right dose of azathioprine depends on age, weight, kidney/liver function and the condition, so MedDroid does not show a dose here. Always get your dose from a doctor or pharmacist and the leaflet inside the pack. General educational information only.
Frequently asked questions
Why are blood tests needed?
Azathioprine can lower blood counts and affect the liver, so regular checks keep you safe.
How long until it works?
It usually takes several weeks to a few months to show full effect.
Do I need sun protection?
Yes. Long-term use raises the risk of skin cancer, so use sunscreen and check your skin.
Explore more
Sources & further reading
- World Health Organization (WHO)
- MedlinePlus — U.S. National Library of Medicine
- Ministry of Health & Family Welfare, India
- Indian Council of Medical Research (ICMR)
Reviewed by Dr. Sanjay Anbu, MBBS. MedDroid is an AI medical assistant and can make mistakes. It provides general health information, not a diagnosis or medical advice — always consult a qualified clinician. In an emergency, contact your local emergency number immediately.