Its active metabolite,<unk>  diphosphate, inhibits viral replication by selectively inhibiting viral DNA polymerases. It also inhibits human polymerases but this action is 8-600 times weaker than its actions on viral DNA polymerases. It also incorporates itself into viral DNA hence inhibiting viral DNA synthesis during reproduction. It possesses in vitro activity against the following viruses: * Human herpesviruses * Adenoviruses * Human poxviruses (including the smallpox virus) * Human papillomavirus
Cidofovir
Brincidofovir
Telbivudine
Sorivudine
Lamivudine
Daclatasvir
Valaciclovir
Letermovir