Ganciclovir (BW 759), a nucleoside analogue, is an orally active antiviral agent with activity against CMV. Ganciclovir also has activity 体外研究 against members of the herpes group and some other DNA viruses. Ganciclovir inhibits the 体外研究 replication of human herpes viruses (HSV 1 and 2, CMV) and adenovirus serotypes 1, 2, 4, 6, 8, 10, 19, 22 and 28. Ganciclovir has an IC50 of 5.2 μM for feline herpesvirus type-1 (FHV-1) and can diffuse into the brain.