Acyclovir vs Valacyclovir Acyclovir and Valaciclovir are two antiviral drugs. These two drugs belong to the same drug class. Because these two are in the same class, their mechanism of action is similar. However, other attributes differ slightly. Acyclovir Acyclovir is an antiviral drug synthesized using the nucleoside extracted from the sponge Cryptotethya crypta. […]