Valtrex – what it is, what it is for, package insert and how to use it!

Valtrex is an antiviral medicine used to treat infections caused by the herpes virus . The active ingredient in Valtrex is valaciclovir, which prevents the herpes virus from  spreading and multiplying during an infectious outbreak.

Valtrex is a prescription drug and it is not possible to buy it without a prescription. At HealthExpress you can buy Valtrex medication online because we issue a prescription based on an online consultation.

For this you must complete our medical questionnaire which will be reviewed by one of our doctors. Then you can order Valtrex directly in your patient area.

What is?

Valtrex (valacyclovir) is an antiviral medication. It slows the growth and spread of the herpes virus  to help the body fight the infection. This medication is used to treat infections caused by herpes viruses , including genital herpes  , cold sores, and shingles ( shingles  ) in adults.

Valtrex is used to treat cold sores  in children who are at least 12 years old or chickenpox in children who are at least 2 years old. This medicine will not cure herpes  and it will not stop you from spreading the virus to other people. However, this medication can lessen the symptoms of an infection.

When should I take:

Before taking Valtrex , tell your doctor if you have HIV /AIDS, a weak immune system, kidney disease (or if you are on dialysis), or if you have had a kidney or bone marrow transplant.

Valtrex can be harmful to the kidneys and these effects are increased when it is used together with other medicines that can damage the kidneys. Tell your doctor about all other medications you are using. You may need dose adjustments or special tests when taking certain medicines together with Valtrex .

Treatment with Valtrex should be started as soon as possible after the first appearance of symptoms (such as tingling, burning, blisters).

Stop taking Valtrex and call your doctor right away if you have any signs of a serious side effect that could harm your red blood cells, such as: fever , easy bruising or bleeding, red patches of skin (not related to herpes or chickenpox) , bloody diarrhea , vomiting, pale or yellowish skin, weakness, fainting, or urinating less than normal or not at all.

To make sure Valtrex is safe for you, tell your doctor if you have:

  • kidney disease (or if you are on dialysis);
  • HIV / AIDS , or other conditions that can weaken the immune system ; or
  • history of kidney transplantation or bone marrow transplantation.

It is not known whether Valtrex will harm an unborn baby. However, the herpes  virus can be passed from an infected mother to her baby during childbirth. If you have genital herpes, it is very important to prevent herpes lesions  during pregnancy so that you do not have a genital lesion when your baby is born.

How should I take?

Take Valtrex exactly as it has been prescribed for you. Follow all instructions on your prescription label. Do not take this medication in larger or smaller amounts or for longer than recommended.

Start taking Valtrex as soon as possible after the first appearance of symptoms (such as tingling, burning, blisters). This medication may not be as effective if you start taking it 1 or 2 days after your symptoms start.

Some herpes infections  need to be treated longer than others. Use this medication for the entire prescribed period of time. Your symptoms may improve before the infection is completely cleared. Skipping doses can increase the risk of the virus becoming resistant to the antiviral drug.

  • You can take Valtrex with or without food.
  • Drink lots of water while taking Valtrex to keep your kidneys working properly.
  • Lesions caused by the herpes virus should be kept as clean and dry as possible. Wearing baggy clothing can help prevent irritation from injuries.
  • Store Valtrex tablets at room temperature away from moisture and heat.

How to use:

  • 2 g orally every 12 hours for a total of 2 doses (4 g) A
  • Therapy should be started at the first sign of a cold sore (such as tingling, burning, or itching).

Usual dose for Herpes Simplex – Mucocutaneous / Immunocompetent contraceptive:

Herpes Genital:

First episode: 1 g orally twice daily for 7 to 10 days Efficacy has not been established if started more than 72 hours after the onset of signs and symptoms.

Recurrent episode: 500 mg orally twice daily for 3 days Therapy should be initiated at the first sign of an episode of genital herpes. Efficacy has not been established if started more than 24 hours after the onset of signs and symptoms.

Usual Adult Dose For Herpes Simplex – suppression:

immunocompetent host: 1 g orally once daily
Alternative dose for immunocompetent with a history of 9 or fewer recurrences per year: 500 mg orally once daily
Safety and efficacy beyond 1 year have not been established in immunocompetent patients.

HIV – infected host with CD4 count 100 cells/mm3 or more: 500 mg orally twice daily Safety and efficacy beyond 6 months have not been established in HIV-infected patients .

Reduction of transmission of genital herpes in immunocompetent hosts with a history of 9 or fewer recurrences per year: 500 mg orally once daily to the partner of origin. Efficacy beyond 8 months has not been established in discordant couples.

Usual Adult Dose of Valtrex:

  • 1 g orally every 8 hours for 7 days
  • Most effective if started within 48 hours of rash onset. Efficacy has not been established if started more than 72 hours after the onset of the rash.

Usual dose for Herpes Simplex – Mucocutaneous / Immunocompromised Antibody:

  • Genital herpes in an HIV-infected host :
  • First episode: 1 g orally twice daily for 7 to 14 days
  • Efficacy has not been established if started more than 72 hours after the onset of signs and symptoms.

Recurrent episode: 1 g orally twice daily for 5 to 14 days Therapy should be initiated at the first sign of an episode of genital herpes. Efficacy has not been established if started more than 24 hours after the onset of signs and symptoms. The use of Valtrex for the treatment of initial and recurrent genital herpes in HIV-infected patients is not approved by the FDA.

Usual Adult Dose for CMV Prophylaxis:

  • In kidney transplant recipient: 2 g orally 4 times daily
  • The use of Valtrex for cytomegalovirus prophylaxis is not FDA approved.

Usual Pediatric Dose of Valtrex for Herpes Simplex Labialis:

12 years and older: 2 g orally every 12 hours for a total of 2 doses (4 g) Therapy should be started at the first sign of a cold sore (such as tingling, burning, or itching).

Usual Pediatric Dose of Valtrex for Varicella-Zoster:

Chickenpox in an immunocompetent host:

  • 2 under 18 years: 20 mg/kg orally 3 times daily for 5 days
  • Maximum dosage: 1 g orally 3 times daily Therapy should be started at the earliest sign of chickenpox, no later than 24 hours after the onset of the rash.

What Happens If I Overdose?

Seek emergency medical attention or call the Medication helpline.

What Should I Avoid While Taking Valtrex?

Taking this medicine will not prevent you from passing genital herpes to other people. Herpes infections are contagious and you can infect others even when you are taking Valtrex .

Avoid sexual intercourse or use a latex condom to prevent you from spreading the virus to others. Avoid letting infected areas come into contact with other people.

Avoid touching an infected area and touching your eyes. Wash your hands frequently to prevent the spread of infection. Do not share this medication with anyone else, even if they have the same symptoms as you.

Side effects:

Get emergency medical help if you have signs of an allergic reaction to Valtrex : hives; breathing difficulty; swelling of the face, lips, tongue or throat.

  • confusion, aggression, or you feel unstable or unstable;
  • hallucinations (seeing or hearing things that are not real);
  • speech problems;
  • a seizure (seizures); or kidney problems – little or no urination, painful or difficult urination, swollen feet or ankles, tiredness or shortness of breath.
  • Stop taking Valtrex and call your doctor right away if you have any of the following signs of a serious side effect that can harm your red blood cells:
  • fever , pale skin;
  • unusual bleeding (nosebleeds, bleeding gums);
  • red or pink urine, little or no urination;
  • red patches of skin (not related to herpes or chickenpox);
  • feeling weak or tired;
  • stomach pain, bloody diarrhea , vomiting; or
  • swelling in the face, hands or feet.
  • Side effects may be more likely in adults aged 65 and over.

The most common vatrex side effects can include:

  • nausea, stomach pain;
  • headache;
  • rash; or
  • Feeling tired.

This is not a complete list of Valtrex Side Effects and others that may occur. Call your doctor for medical advice about side effects. You can report side effects to the FDA at 1-800-FDA-1088.

Other information:

Useful links: 

Remember to keep this and all other medicines out of the reach of children, never share your medicines with others and use Valtrex only for the indication prescribed. Always consult your physician to ensure that the information displayed on this page applies to your personal circumstances.

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