Valacyclovir: uses, dosage, and what to expect
Valacyclovir treats herpes simplex, shingles, and chickenpox. Understand dosing, side effects, and how it works before you start.
What valacyclovir does
Valacyclovir is an antiviral medication that stops herpes viruses from multiplying in your body. It treats three main conditions: herpes simplex (cold sores and genital herpes), shingles, and chickenpox.
How it works
Your body converts valacyclovir into acyclovir, the active ingredient that blocks viral replication. It works fastest when you start it early, ideally within the first few days of symptoms appearing.
Common dosing
Dosage depends on which condition you are treating and whether this is your first outbreak or a recurrence. Your prescriber will adjust based on kidney function and other medications you take.
Side effects to know about
Most people tolerate valacyclovir well. Common side effects include headache, nausea, and dizziness. Serious side effects are rare but can include confusion, tremors, or hallucinations, especially at high doses or in people with kidney problems.
Getting valacyclovir
It is a prescription medication available as tablets and liquid suspension. Telehealth appointments are a straightforward way to get diagnosed and prescribed if you have recurrent outbreaks or need confirmation of a diagnosis.