Buy Valaciclovir (Valacyclovir) 500 mg Tablets online. Each tablet contains 500 mg of valaciclovir, an antiviral medicine used to treat infections caused by the herpes viruses. It is the same active ingredient as the reference brand Valtrex. In the USA, UK and Australia it is a prescription medicine, so a valid prescription is needed for your order. See today’s price above and add it to your cart.
The 500 mg strength is the standard tablet for treating and preventing genital herpes. Valaciclovir is also used for shingles and cold sores. It is not a cure, but it helps outbreaks clear faster and, when taken daily, can reduce how often they return. Approved uses and legal status differ between countries, so this page covers the USA, UK, Australia, the UAE and Russia.
The reference (original) brand of valaciclovir is Valtrex, developed by GSK and sold in many countries. Valaciclovir is also sold as generic tablets and under other brand names, including Valtrex in the USA, UK, Australia and Russia (Вальтрекс). The spelling differs: valaciclovir is the international name and valacyclovir is the US spelling.
Compare the active ingredient, strength, manufacturer and packaging on your product. Different brands contain the same active ingredient at the same labelled strength but should not be assumed to have identical inactive ingredients or appearance.
Genital herpes: valaciclovir 500 mg is used to treat the first episode and later outbreaks of genital herpes, and as a daily tablet to prevent outbreaks in people who get them often. In the USA the label also covers reducing the chance of passing genital herpes to a partner when used daily together with safer sex.
Shingles: it treats shingles (herpes zoster), which is the return of the chickenpox virus. It works best when started within 72 hours of the rash appearing.
Cold sores: it treats cold sores on the lips and face when started at the first tingle or sign.
Other uses: in the UK the product information also lists prevention of cytomegalovirus after organ transplant in specialist care. Your prescriber chooses the right tablet strength and dose for you.
Valaciclovir is a pro-drug of aciclovir (acyclovir). After you swallow it, the body converts it into aciclovir, which stops the herpes virus from copying its DNA. This limits how fast the virus multiplies, so sores heal sooner and symptoms ease. Valaciclovir is absorbed better than aciclovir tablets, which is why it can be taken fewer times a day. It does not remove the virus from the body.
The UK product information describes a 500 mg tablet twice a day for treating herpes simplex infections of the skin and genital area, for about 3 to 10 days depending on whether it is a first or repeat episode. To prevent repeat genital herpes outbreaks, 500 mg once a day is described. Start treatment as early as possible, at the first sign of an outbreak.
Dosing rules vary by country. The US label describes 500 mg twice a day for 3 days for a repeat genital herpes outbreak, and 500 mg or 1 g once a day for suppression, with different doses for cold sores and shingles. Tablets can be taken with or without food and should be swallowed with a glass of water. Kidney problems and older age may need a lower dose. Always follow the leaflet in the pack and the advice of your prescriber or pharmacist.
Seek urgent medical attention for swelling of the face, lips or throat, difficulty breathing, severe skin reactions, passing very little urine, or confusion, hallucinations or severe drowsiness, which are more likely in older people and in people with kidney problems. In people with a weakened immune system, rare serious blood and kidney disorders have been reported.
Store the tablets in their original pack at room temperature, below 30°C, following any instructions printed on the pack. Keep out of the reach of children and do not use after the expiry date.
Ordering Valaciclovir (Valacyclovir) 500mg Tablets takes a few minutes:
Questions before you order? Message a pharmacist on WhatsApp or call the support line shown on this page.
What is valaciclovir 500 mg used for?
It is an antiviral used to treat genital herpes, shingles and cold sores, and to prevent repeat genital herpes outbreaks, according to UK and US product information. It works best when started early. Your prescriber chooses the dose.
Is valaciclovir the same as valacyclovir?
Yes. Valaciclovir is the international spelling and valacyclovir is the US spelling of the same medicine. Both contain valaciclovir hydrochloride, and both are the same active ingredient as the reference brand Valtrex.
What is the reference brand of valaciclovir?
The reference (original) brand is Valtrex, developed by GSK. Valaciclovir is also sold as generic tablets and under other names. Always check the strength and manufacturer on the pack you receive.
Do I need a prescription for valaciclovir?
Yes. In the USA, UK and Australia, valaciclovir is a prescription medicine. Upload your prescription at checkout or on the Upload prescription page, and our pharmacist will check it before dispatch.
How do I buy valaciclovir 500 mg tablets online?
Choose your pack, add it to your cart and check out securely. Because a prescription is required, upload it at checkout or on the Upload prescription page. Our pharmacist checks it before dispatch, and you can follow your order from your account.
What is the dose of valaciclovir 500 mg for genital herpes?
The UK product information describes one 500 mg tablet twice a day for treatment, and once a day to prevent outbreaks. The US label gives different durations. Always follow your own prescription and the leaflet in the pack.
Can I take valaciclovir 500 mg every day?
Yes, if prescribed. A daily 500 mg tablet is used as suppressive therapy to reduce how often genital herpes outbreaks happen. It does not cure herpes or remove the risk of passing it on, so safer sex is still advised.
How quickly does valaciclovir work?
It starts to work within a day or two, and sores usually heal sooner when treatment starts at the first sign. It works best started early, so keep a supply ready if your prescriber has advised this.
Can I take valaciclovir with food or alcohol?
Valaciclovir can be taken with or without food. Drink plenty of fluids while taking it. There is no specific alcohol interaction, but alcohol can worsen dizziness and dehydration, so ask your pharmacist if unsure.
Can valaciclovir cause side effects?
Yes. The most common are headache, nausea, dizziness and diarrhoea. Rarely it can cause confusion or kidney problems, especially in older people. Seek medical advice if you feel unwell or notice unusual symptoms.
Which countries do you deliver to?
We deliver to the USA, UK, Australia, the UAE, Russia and many other countries. Delivery options and the estimated delivery time for your country are shown at checkout before you pay.
Can I return or cancel my order?
Orders cannot be cancelled once placed, and refunds follow our Shipping, Returns and Refunds policy. Please check your order details carefully before you confirm it.
This page provides general product information and does not replace professional medical advice, diagnosis or treatment. Valaciclovir is a prescription antiviral and must be taken only as directed by your prescriber. Follow the official product information and the guidance of a healthcare professional.
Last Updated: October 28, 2026
Orders ship from our India Head Office within 1–2 business days of confirmation. We include full customs documentation — HS codes, certificates of origin, and pharmaceutical export permits.
Estimated delivery: 3–7 business days to UK. 7–10 business days to UAE, Saudi Arabia and Gulf countries. 10–15 days for USA and Asian countries.
All packages arrive in plain, unmarked brown boxes. No pharmacy name or medication details on the outside.
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