Valtrex (Valaciclovir) 500mg is an antiviral medication used to treat infections caused by herpes viruses. Each pack contains 42 tablets manufactured by GSK. The tablets contain 500mg of the active ingredient valaciclovir and are designed for oral administration. Valtrex works by stopping the growth and spread of the herpes virus in the body. It is commonly prescribed to treat cold sores, genital herpes, shingles and chickenpox. The medication should be taken exactly as prescribed by your healthcare provider. The distinctive blue packaging with orange accents features the GSK logo and clear labeling of the active ingredient and tablet count. Store at room temperature away from moisture and direct light. This is a prescription-only medication that should be used under medical supervision.