Actavis' generic Valtrex OKed by FDA

MORRISTOWN, N.J. — The Food and Drug Administration has approved a generic treatment for shingles and genital herpes made by Actavis, the drug maker said Wednesday.

The FDA approved Actavis’ valacyclovir hydrochloride tablets in the 500-mg and 1-g strengths.

The drug is a generic version of GlaxoSmithKline’s Valtrex. Branded and generic forms of the drug had sales of about $1.5 billion in 2010, according to IMS Health.