User:Mr. Ibrahem/Azathioprine

Azathioprine (AZA), sold under the brand name Imuran among others, is an immunosuppressive medication. It is used in rheumatoid arthritis, granulomatosis with polyangiitis, Crohn's disease, ulcerative colitis, systemic lupus erythematosus, and in kidney transplants to prevent rejection. It is taken by mouth or injected into a vein.

Common side effects include bone marrow suppression and vomiting. Bone marrow suppression is especially common in people with a genetic deficiency of the enzyme thiopurine S-methyltransferase. Other serious risk factors include an increased risk of lymphoma. Use during pregnancy may result in harm to the baby. Azathioprine is in the purine analogue and antimetabolite family of medication. It works via 6-thioguanine to disrupt the making of RNA and DNA by cells.

Azathioprine was first made in 1957. It is on the World Health Organization's List of Essential Medicines. The wholesale cost in the developing world is about US$7.63–17.19 a month. The wholesale cost in the United States is about US$35.34 per month. As of 2023, a month supply in the UK typically costs the NHS less than £10. In 2017, it was the 335th most commonly prescribed medication in the United States, with more than 800 thousand prescriptions.