Generic Famvir Tablets (Virovir) is used for the treatment of herpes zoster (shingles), acute treatment of first episode and recurrences of genital herpes infections, and for the suppression of recurrent genital herpes. Generic Famvir is also used for the treatment of recurrent herpes labialis (cold sores). Generic Famvir (Virovir Tablets) is also used to treat immunocompromised patients with herpes zoster or herpes simplex infections.