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Generic Name: Valacyclovir

Brand Names: Valtrex, Talavir, Zelitrex

Dosage Package: 1000 mg, 500mg

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An attack of herpes symptoms may occur due to a change of climate, hypothermia, low immunity, and others. In order to avoid the affection of a great area of the skin by herpes, one can begin taking Valtrex.

General description

Valtrex is an antiviral product which can lower a frequency of the herpes relapse and accelerate healing of wounds. It contains an active ingredient Valaciclovir which is quickly turned into acyclovir in the body (a more active metabolite).

Valtrex provides a specific inhibiting action as to herpes virus. It penetrates into the DNA of the virus cells and breaks the important chains for viruses. Due to this chain break of DNA, it stops being synthesized and virus cannot grow.

Using Valtrex reduces the intensity of the herpes symptoms: inflammation of the soft tissues quickly passes, itching, painfulness are reduced, wounds are quickly healed, and the scars are not left.

Valtrex helps to reduce a chance of the transfer of the genital herpes during the sexual intercourse but it does not protect partners by 100%, and therefore it is necessary to avoid sexual activity during the acute condition of the disease. The regular use of Valtrex can reduce the frequency of the attack of the labial herpes.

Valtrex is one of few drugs which is effective in the treatment of herpes in people with HIV

Indications for the use

  • Treatment of infections caused by the herpes simplex virus
  • Treatment and prevention of genital herpes
  • Treatment of herpes zoster
  • Cytomegalovirus disease
  • Prevention of rejection and necrosis of the kidneys after surgery

In what dose is Valtrex used?

The dosage regimen of Valtrex depends on the type of herpes, its site and symptoms. The tablets are taken strictly according to the instructions regardless of meals and with a full glass of water.

  • Take a tablet of Valtrex 500 mg 2 times per day within 5 days to treat infections caused by herpes simplex 1 and 2
  • Take Valtrex 100 mg 3 times per day within 7 days to treat herpes zoster
  • To prevent genital herpes and reduce a risk of the infection, Valtrex is taken in the dose of 500 mg once per day within a year


Even high doses of Valtrex are not toxic for the body and a chance of the overdose is low. However, the excessively high doses of Valtrex (more than 20 g per day) can cause an acute condition of the neurological side effects and disorders in the gastro-intestinal tract vomiting, diarrhea, confusion, hallucinations, convulsions, and coma.

Medical interaction

  • Metabolites of Valtrex are mainly excreted by kidneys intactly and do not interact with other medical products. There is no data about medical interactions of Valtrex needed a change of the dosage regimen or scheme of the treatment

Preventive measures

  • Valtrex is not prescribed patients who have had an allergic reaction to Valaciclovir, Acyclovir, or any other additional ingredient which is added to the tablets
  • Valtrex should be used carefully under the doctor’s supervision in case of severe forms of HIV.


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