Valtrex® is a branded formulation of valacyclovir, an antiviral medicine that is converted into acyclovir after absorption. It helps inhibit the replication of herpes viruses and is commonly prescribed for conditions associated with herpes simplex virus (HSV) and varicella-zoster virus (VZV).

The medication is frequently used under physician supervision for the management of recurrent herpes infections and shingles. Its favorable absorption profile allows for convenient dosing compared with standard acyclovir formulations.

Treatment decisions, dosing schedules, and duration of therapy should always be determined by a qualified healthcare professional.