Valacyclovir is an antiviral medicine that turns into acyclovir in the body and stops herpes viruses from copying.

What Valacyclovir Is Used For

Shingles
Cold sores
Genital herpes, including preventing repeat outbreaks

Common Side Effects

Headache
Nausea
Stomach pain

Precautions

It works best when started early. Drink plenty of fluids. Tell your doctor if you have kidney problems. It does not cure herpes or stop it spreading to others.

This page is general information only. It is not a substitute for advice from your doctor or pharmacist, and it does not include dosage. Always follow the directions given to you and read the leaflet inside the pack.