DrugDigest: Valtrex: Information on dosage, usage, side effects, interactions, and drug comparisons.Valtrex: Valtrex is indicated for the treatment or suppression of genital herpes for adults with normal immune systems. (Valacyclovir)Valtrex: a.k.a. Valacyclovir HCL.Valtrex: Full prescribing information from RxList.Valtrex ( valcyclovir HCl ): Contains information about genital herpes and treatment options from Glaxo Wellcome.