Mycophenolic Acid (MPA) is an immunosuppressive medication used to prevent organ rejection after transplantation. It works by inhibiting the production of white blood cells, which are responsible for the immune response.

MPA is commonly used in combination with other immunosuppressive drugs, such as cyclosporine and corticosteroids. It can also be used to treat certain autoimmune diseases, such as lupus and rheumatoid arthritis.

MPA is available in both oral and injectable forms, and its use requires careful monitoring of blood counts, liver function, and kidney function. Common side effects of MPA include gastrointestinal disturbances, headaches, and infections.