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- Clinician Information:
Azasan Patient Information Including Side Effects
Brand Names: Azasan, Imuran
Generic Name: azathioprine (Pronunciation: ay za THYE oh preen)
- What is azathioprine (Azasan)?
- What are the possible side effects of azathioprine (Azasan)?
- What is the most important information I should know about azathioprine (Azasan)?
- What should I discuss with my healthcare provider before taking azathioprine (Azasan)?
- How should I take azathioprine (Azasan)?
- What happens if I miss a dose (Azasan)?
- What happens if I overdose (Azasan)?
- What should I avoid while taking azathioprine (Azasan)?
- What other drugs will affect azathioprine (Azasan)?
- Where can I get more information?
What is azathioprine (Azasan)?
Azathioprine lowers your body's immune system. The immune system helps your body fight infections. The immune system can also fight or "reject" a transplanted organ such as a liver or kidney. This is because the immune system treats the new organ as an invader.
Azathioprine is used to prevent your body from rejecting a transplanted kidney. It is also used to treat symptoms of rheumatoid arthritis.
Azathioprine may also be used for purposes not listed in this medication guide.
Azathioprine 50 mg-GG
oblong, yellow, imprinted with GG 210
Azathioprine 50 mg-ROX
round, yellow, imprinted with 54043
Imuran 50 mg
peanut, yellow, imprinted with IMU RAN 50
What are the possible side effects of azathioprine (Azasan)?
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
- fever, night sweats, weight loss, tiredness;
- feeling full after eating only a small amount;
- pain in your upper stomach that may spread to your shoulder;
- easy bruising or bleeding, pale skin, feeling light-headed or short of breath, rapid heart rate; or
- nausea, upper stomach pain, itching, loss of appetite, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes).
Stop using azathioprine and call your doctor at once if you have any of these other serious side effects:
- signs of infection (fever, chills, sore throat, body aches, weakness, muscle pain, flu symptoms);
- severe nausea, vomiting, or diarrhea;
- pain or burning with urination; or
- white patches or sores inside your mouth or on your lips.
Less serious side effects may include:
- mild upset stomach, nausea, diarrhea, loss of appetite;
- hair loss; or
- skin rash.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
Read the Azasan (azathioprine) Side Effects Center for a complete guide to possible side effects
What is the most important information I should know about azathioprine (Azasan)?
Call your doctor at once if you have any of the following symptoms: fever, night sweats, itching, loss of appetite, weight loss, tiredness, feeling full after eating only a small amount, pain in your upper stomach that may spread to your shoulder, nausea, easy bruising or bleeding, pale skin, feeling light-headed or short of breath, rapid heart rate, dark urine, clay-colored stools, or jaundice (yellowing of the skin or eyes).
Azathioprine can lower blood cells that help your body fight infections. Your blood may need to be tested often. Avoid being near people who are sick or have infections. Avoid activities that may increase your risk of bleeding injury. Tell your doctor at once if you develop signs of infection.
If you need to have surgery, tell the surgeon ahead of time that you are using azathioprine. You may need to stop using the medicine for a short time.
This medication can affect fertility (your ability to have children), whether you are a man or a woman. Talk with your doctor if you have concerns about this.
Do not receive a "live" vaccine while you are being treated with azathioprine and avoid coming into contact with anyone who has recently received a live vaccine. There is a chance that the virus could be passed on to you.
Additional Azasan Information
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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