Imuran weakens your body's immune system, to help keep it from "rejecting" a transplanted organ such as a kidney. Organ rejection happens when the immune system treats the new organ as an invader and attacks it.
Imuran is used to prevent your body from rejecting a transplanted kidney. This medicine is also used to treat symptoms of rheumatoid arthritis.
Imuran may also be used for purposes not listed in this medication guide.
