In your body, valacyclovir becomes the anti-herpes medicine, acyclovir. Although valacyclovir will not cure shingles or genital herpes, it does help relieve the pain and discomfort and helps the sores heal faster. Valacyclovir is available only with your doctor's prescription.

How long does it take for Valtrex to work on shingles?

It may take up to three days before a reduction in symptoms occurs. Even if symptoms fully abate, valacyclovir should be taken until the prescribed course has been completed. Best started within 24-48 hours of symptom onset.

How much Valtrex should you take for shingles?

Valacyclovir Dosage for Shingles

The standard dose of valacyclovir used to treat shingles is 1,000 mg taken three times every day. Valacyclovir treatment for shingles usually goes on for seven days, although your doctor may recommend continuing valacyclovir if your symptoms are slow to improve.