<unk>  is a nucleoside analogue DNA polymerase inhibitor that is FDA approved for the {{{indicationType}}} of herpes labialis (cold sores), genital herpes, herpes zoster (shingles) in immunocompetent adult patients and recurrent orolabial or genital herpes in HIV-infected adult patients.   Common adverse reactions include headache and nausea.
Famciclovir
Penciclovir
Valacyclovir
Acyclovir 
Valganciclovir hydrochloride
Ganciclovir 
Alcaftadine
Amantadine 