Immunomodulators such as methotrexate, imuran and cyclosporin have been used somewhat successfully for moderate to severe psoriasis.
From the news-journalonline.com
Imuran, an immune system suppressant developed by GlaxoSmithKline for use in kidney transplant patients, also may help lupus patients.
From the bloomberg.com
In the 1960s, the discovery of anti-rejection drugs such as azathioprine, imuran and prednisone, allowed Murray to carry out transplants from unrelated donors.
From the en.wikipedia.org
More examples
Azathioprine: an immunosuppressive drug (trade name Imuran) used to prevent rejection of a transplanted organ
Azathioprine is a drug that suppresses the immune system.