Mercaptopurine (US Brand Name: Purinethol)

Mercaptopurine Mercaptopurine, 6-MP tablets What do mercaptopurine tablets do?MERCAPTOPURINE (6-MP, Purinethol(R)) is a type of chemotherapy for treating cancer. Mercaptopurine interferes with the growth of cancer cells. It is used for treating acute lymphocytic leukemia (a cancer in which increased numbers of abnormal white blood cells are formed). P> What should my health care professional know before I take mercaptopurine?They need to know if you have any of these conditions: