Buy Oral Valtrex (Valacyclovir) 500 mg Tablets Online

Valtrex (Valacyclovir) is an antiviral medication that is used to treat certain types of viral infections in adults and children who are at least 2 years of age. It belongs to a class of drugs called Purine nucleosides. Valtrex may not actually cure infections but can give your immune system a boost to fight off the infections.


Uses of Valtrex

  • Treatment of chickenpox caused by varicella zoster virus in children who are at least 2 years old
  • Treatment of cold sores caused by herpes simplex in children who are at least 12 years old
  • Treatment of genital herpes and the prevention of future outbreaks
  • Treatment of shingles in adults 

N/B: Valtrex may be used for other purposes not listed in this guide. 


Patients should adhere to the following instructions before and while using Valtrex”

  • Inform your doctor if you are allergic to it or acyclovir (Zovirax). 
  • Inform your doctor if you have any of these health conditions:
    • Potentially weakened immunity due to HIV/AIDS
    • Kidney impairment (including history of dialysis)
    • History of organ transplantation (like kidney or bone marrow)
    • History of drug or controlled substance abuse
    • Recent vaccination history
    • Recent history of surgery 
  • Do not operate heavy machines or drive for long distances.
  • Limit your alcohol intake while using Valtrex, as it could impair your cognition. 
  • Valtrex use in pregnancy should be done with caution. You should only consume it if your doctor has prescribed it for you. 
  • The drug can pass through breast milk and harm a nursing baby. Do inform your doctor if you are breastfeeding before taking Valtrex.

How to Use Valtrex

Take this medication as directed by your physician. It works better when taken within the first 48 hours of the occurrence of symptoms of shingles or genital herpes.

Valtrex can be taken by mouth with or without a meal. Also, ensure to consume plenty of water to help reduce the chances of experiencing some side effects. 

Take it as soon as you start feeling tingling, blisters, or burning sensations. The dosage depends on your condition and how severe your doctor thinks it is. 

Do not take Valtrex more or less than the prescribed dose. Even if you don't start getting relief after the first few days, ensure you complete the prescription course.

Valtrex Dosing information

The dose to take is dependent on your condition, weight, and whether there are other underlying health impairments. People with kidney impairment will need dose adjustments. 

For treatment of cold sores: Two grams every 12 hours on the first day for adults and children twelve years and above. A doctor must determine the dose for children under 12 years old.

For treatment of genital herpes: The dosage for adults is one gram twice daily for 10 days and 0.5 grams twice daily for three days, respectively.

If you need to take Valtrex to prevent recurrent outbreaks of genital herpes in adults, the dosage is 0.5 to one gram once daily.

For treatment of chickenpox: The general dosage for children (2-18 years) is 20 mg/Kg body weight three times daily for 5 days. However, a doctor must determine the dose for adults and children below 2 years. Children between 2-18 years must not exceed a maximum dose of 1000 mg three times daily

For treatment of shingles: The usual adult dose is one gram to be taken three times daily for at least 7 days. The dose for children should be determined by a doctor.

Side Effects

The common side effects patients may experience while using this drug are mild and include:

  • Stomach pains
  • Headache
  • Nausea 

Other side effects that should not be taken lightly include:

  • Hives
  • Swellings in your face, lips, tongue, or throat
  • Difficulty in breathing
  • Confusion
  • Convulsions
  • Decrease in urine output
  • Hallucinations 
  • Serious fever
  • Abdominal pains
  • Bloody stool
  • Diarrhea
  • Bleeding from the nose and gums
  • Speech difficulty
  • Skin discoloration 

Missed Dose and Overdose

If you miss a dose, take it as soon as you remember. Skip the missed dose if your remembered time is close to your next dose. Also, inform your doctor about incidences of missed doses. In case of overdose or poisoning, contact the poison control center in your area immediately.


Valtrex is known to interact with some drugs and disease conditions. Some of the major drug interactions are with:

  • Metrizamide
  • Iodamide
  • Cidofovir
  • Everolimus
  • Iohexol
  • Tenofovir
  • Sirolimus
  • Tacrolimus
  • Iopamidol
  • Diatrizoate
  • Iothalamate
  • Ioversol
  • Temsirolimus
  • Live zoster vaccine
  • Iopromide
  • Varicella virus vaccine

The disease interactions are with:

  • Thrombotic thrombocytopenic purpura/hemolytic uremia syndrome, also known as TTP/HUS. Use of Valtrex when a sign of this condition is observed should be discontinued immediately.
  • Renal impairment
  • Hemodialysis
  • Dehydration 


This medicine should be stored in a cool dry place, away from direct sunlight. All medication should be kept out of the reach of children and pets.


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