A mycophenolic acid prodrug. Immunosuppressive agent useful in prevention of organ allograft rejection1. Is metabolized to mycophenolic acid in vivowhich acts by inhibiting the biosynthesis of guanine nucleotides viainhibition of inosine 5’-monophosphate dehydrogenase, suppressing the production of proinflammatory cytokines, nitric oxide and LDH in macrophages2,3. IL-2-dependent T cell proliferation is also inhibited4. Inhibits microglial and astrocytic activation reducing cell death after neuronal injury5. Active in vivo.