Mycophenolate mofetil (MMF) is the morpholinoethylester prodrug of myc
ophenolic acid, an agent which inhibits the proliferation of B and T l
ymphocytes through the noncompetitive, reversible inhibition of inosin
e monophosphate dehydrogenase, itself a key enzyme in the de novo synt
hetic pathway of guanosine nucleotides. Currently, MMF is approved for
the prevention of acute renal allograft rejection when used in combin
ation with cyclosporin and corticosteroids. Several studies have also
demonstrated that this drug is useful in the treatment of refractory r
ejection in renal, heart and liver transplant recipients.