6-Mercaptopurine for Crohn's
Mercaptopurine (Purinethol®) is a prescription medication approved to treat a type of cancer called acute lymphatic leukemia (ALL). Also called 6-mercaptopurine or 6-MP, mercaptopurine works by interrupting the multiplication process of DNA, which helps slow down the growth of cancer cells.
There may also be situations when a healthcare provider may prescribe 6-mercaptopurine to treat Crohn's disease. However, this is considered an off-label (unapproved) use for the medication.
(For more details, click What Is Mercaptopurine Used For?. This Web selection takes a closer look at approved and unapproved uses for this medication, and lists the age groups it is approved for.)