Watson introduces generic Famvir

MORRISTOWN, N.J. — A subsidiary of Watson Pharmaceuticals has launched a treatment for herpes infections, the company said Monday.

Watson Labs launched famciclovir tablets in the 125-mg, 250-mg and 500-mg strengths. The drug is a generic version of Novartis’ Famvir and is used to treat cold sores and genital herpes in patients with and without HIV.

Famvir and generic versions had sales of about $197 million in 2010, according to IMS Health.