azathioprine in rheumatoid arthritis

Last reviewed 01/2018

Azathioprine is a mercaptopurine derivative which has cytotoxic and immunosuppressive effects.

It is used in the treatment of progressive rheumatoid arthritis.

Azathioprine is metabolised to mercaptopurine and then to thioinosinate which interferes with purine metabolism.

The most common side-effects of azathioprine are myelosuppression and hepatotoxicity.