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What is Azathioprine?
Azathioprine is used to prevent organ rejection in people who have received a kidney transplant. It is usually used along with other medications to allow your new kidney to function normally. Azathioprine is also used to treat rheumatoid arthritis. In this condition, the body's defense system (immune system) attacks healthy joints. Azathioprine belongs to a class of drugs known as immunosuppressants. It works by weakening the immune system to help your body accept the new kidney as if it were your own (in the case of an organ transplant) or to prevent further damage to your joints (in the case of rheumatoid arthritis). This medication is given by injection until you are able to take azathioprine by mouth. Talk to your doctor about the risks and benefits of azathioprine, especially when used in children and young adults.