Mycophenolic acid is a potent uncompetitive inosine monophosphate dehydrogenase (IMPDH) inhibitor with an EC50 of 0.24 µM. Mycophenolic acid demonstrates antiviral effects against a wide range of RNA viruses including influenza. Mycophenolic acid is an immunosuppressive agent. Antiangiogenic and antitumor effects[1][2].