Notes: Valganciclovir is a valyl ester prodrug form of the antiviral nucleoside analog ganciclovir (Item No. 13853). In vivo, valganciclovir (200 mg/kg) increases survival and reduces weight loss in an immunosuppressed hamster model of disseminated adenovirus type 5 (Ad5) infection.{52613} Formulations containing valganciclovir have been used in the prevention of post-transplant cytomegalovirus (CMV) infections.