Mycophenolic acid (MPA) is an immunosuppressant medication used to prevent rejection following organ transplantation and to treat autoimmune conditions such as Crohn’s disease and lupus. Specifically it is used following kidney, heart, and liver transplantation. mycophenolate mofetil manufacturers. It can be given by mouth or by injection into a vein. It comes as Mycophenolate Sodium and mycophenolate mofetil.