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Valaciclovir

Valaciclovir

Safe and Effective Cold Sore Treatment

Valaciclovir is an antiviral medication used to treat and manage infections caused by certain viruses, primarily those in the herpes family. It works by slowing the growth and spread of the herpes virus in the body. It is the generic version of Valtrex.

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Cold Sore

What is Valaciclovir?

Valtrex is an antiviral medicine, that works to stop infections such as herpes (genital or otherwise). It is the generic form of Valtrex.

How does Valaciclovir work?

This medication works by stopping the infecting virus from reproducing. This process starts very early after being infected so Valtrex works best when taken as soon as possible once symptoms begin to appear.

What are the benefits of taking Valaciclovir?

Part of a group of sexually transmitted infections, Genital herpes is a viral infection caused by herpes simplex virus type 1 or 2. The symptoms can be painful and uncomfortable, as the virus causes blisters and burning or itching around the genitals. Treating genital herpes with Valaciclovir not only clears symptoms, but also stops the disease from being passed onto anyone else.

When treating genital herpes, the recommended dose is 500mg taken twice a day. For the first infection, you should take the tablets for 5-10 days (to be decided by your doctor). If you’ve had an outbreak before and are treating a further one then treatment normally lasts for 3-5 days. For prevention of any further outbreaks, the normal dose is 500mg once a day for as long as your doctor decides.

Side effects

As with all medicines, Valaciclovir should only be taken after carefully weighing the potential positives and negatives in conjunction with a qualified healthcare professional. The most common adverse reactions (ARs) reported by patients treated with Valaciclovir were headache and nausea.

The following side effects have also been reported:

Common (affects less than 1 in 10 patients receiving the medicine):

  • Feeling sick
  • Dizziness
  • Vomiting
  • Diarrhoea
  • Skin reaction after exposure to sunlight (photosensitivity)
  • Rash

Active ingredients

Valaciclovir (as valaciclovir hydrochloride)

Inactive ingredients

Microcrystalline cellulose, Crospovidone, Povidone, Magnesium stearate, Silica colloidal anhydrous

Patient Information Leaflet

Always read the patient information leaflet before commencing treatment. 

View patient information leaflet.

Cold Sore treatment options

Compare our popular treatments to see what option best suits your lifestyle.

Aciclovir
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Valtrex
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