NCIt definition : An inosine monophosphate dehydrogenase (IMPDH) inhibitor with activity against hepatitis
C virus (HCV). IMPDH catalyzes the rate-limiting step in the de novo synthesis of
guanine nucleotides, and treatment with merimepodib reduces the intracellular guanine
nucleotide levels that are required for RNA and DNA synthesis, resulting in antiproliferative
and antiviral effect.;