Valtrex 500mg Tablets

Buy Valtrex 500mg Tablets to treat Herpes

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Valtrex 500mg Tablets for Herpes

Genital herpes affects up to 23% of adults in the UK. Flare ups can often be painful and embarrassing. Whilst there is no cure for Herpes, fortunately antiviral medication such as Valtrex 500mg tablets can be purchased online from Medicine Direct which can reduce the painful and embarrassing symptoms of herpes as soon as they start to appear.

What is Valtrex?

Valtrex is the branded version of valaciclovir, it is a prescription-only medication that belongs to a group of drugs known as antivirals.

It can be used to treat the herpes simplex virus (cold sores), as well as genital herpes. Valtrex can also be taken to stop recurring outbreaks of both viruses.

Valtrex can also be used to treat shingles in adults.

What is Valtrex used to treat?

Valtrex 500mg tablets are prescribed to provide effective treatment for the herpes simplex virus (HSV). This virus is responsible for causing outbreaks of the likes of cold sores and genital herpes. It can be used by adults and children over the age of 12 to treat these conditions and prevent them from reoccurring.

To treat genital herpes and other skin infections caused by the herpes virus, you will normally be instructed to use this medication for five days.

Valtrex 500mg tablets can also be prescribed as a treatment for shingles in adults.

It is important to remember that taking Valtrex 500mg tablets will not completely remove the risk of passing on genital herpes or other forms of the herpes simplex virus sexually.

It should not be used as a form of contraception. When you use Valtrex, you should still practice safe sex; if you have visible sores, you are advised to avoid having sex altogether.

How does Valtrex treat herpes?

Valtrex 500mg tablets contain the active ingredient valaciclovir. Once you take the tablets, this ingredient is broken down into aciclovir, which is activated once it enters the infected cells and blocks an enzyme within the virus, DNA polymerase.

This stops the virus from being able to multiply and spread, which then allows your immune system to effectively fight off the infection on its own.

When taken correctly, valtrex can help your cold sores clear up quicker and also reduces the number of cold sores you get as a whole.

Who can use Valtrex?

Valtrex is not suitable for everyone to take.

This medicine must not be taken by children who are under the age of 12.

Do not take Valtrex 500mg if any of the following apply to you:

  • You are allergic to valaciclovir or aciclovir tablets, or any of the other ingredients contained in these tablets (please refer to the ingredients tab for a full list of substances)
  • You have ever had an extended rash after taking valaciclovir that was associated with fever, enlarged lymph nodes, increased levels of liver enzymes and/or eosinophilia

Valtrex over the counter

Valtrex is a prescription-only medicine (POM). It can only be bought when prescribed by a doctor.

Buying Valtrex online in the UK

You can buy Valtrex online, but as this is a prescription medicine, you should only do so from a regulated pharmacy like Medicine Direct. All you need to do is complete a confidential online questionnaire on our website. Your answers will be checked by a registered doctor, pharmacist or prescriber, who will assess your condition to make sure Valtrex is suitable for you.

Next day delivery is available if your order is placed by 2pm.

Valtrex alternatives

Medicine Direct stock several treatments for genital herpes. We also stock generic Valaciclovir tablets for this condition. Valaciclovir is the active ingredient contained in Valtrex and will work in the same way to relieve the condition.

Aciclovir is another oral medication that effectively relieves genital herpes, it is available to buy as tablets or as a cream.

Topical treatments like Lidocaine are also available to buy online from medicine direct.

Other tactics you can try to easy your herpes symptoms include:

  • Use Vaseline on the blisters to relieve discomfort and aid in the healing process
  • Take pain relief tablets like Naproxen
  • Keep the affected area clean using either water or salt water
  • Avoid any known triggers of the problem, such as alcohol
  • Do not wear tight clothing

Valtrex dosage for suppression

The typical dose of Valtrex for HSV is 500mg twice daily, although this will depend on your condition.



Herpes simplex Virus (HSV)

500mg twice daily

Source - NICE

These doses may be adjusted by your doctor if:

  • You have a weak immune system
  • You are over the age of 65
  • You have any kidney problems

How to take Valtrex

You should take Valtrex on the first day of noticing a cold sore starting to develop. Valtrex will prevent the herpes virus spreading along the skin and will rapidly reduce symptoms.

Swallow Valtrex tablets whole with a drink of water. Do not crush or chew them.

Take this medicine at the same time(s) each day.

While taking Valtrex, you should drink plenty of water throughout the day. This will reduce the risk of side effects that can affect the nervous system or kidneys.

Always read the patient information leaflet, which will come with your tablets, for full instructions on how to take Valtrex.

How long will Valtrex take to work?

Some people may find it takes between seven and 10 days before Valtrex works. Some may find it works after a couple of days. To effectively treat your condition, it is important you keep taking Valtrex for as long as your doctor has told you to.

Does Valtrex cause weight gain?

Weight gain is not a side effect commonly associated with Valtrex. Tell your doctor if you feel you are gaining weight as a result of this medicine.

What is Valtrex used for?

Valtrex is primarily used to treat cold sores caused by Herpes Simplex Virus, it helps to reduce the appearance of cold sores and to stop the spread of cold sores to other areas of the skin.

Am I still contagious while taking Valtrex?

There is still a risk that you can pass on the herpes virus to others while taking Valtrex. If you have any visible sores on your genitals, you should not have sex until treatment is complete.

Can I drink alcohol with it?

Drinking alcohol will not interact with Valtrex, but it may impair the immune system. This means that it may be harder to treat your infection.

Is valtrex available over the counter?

No, Valtrex is a prescription only medicine that needs to be prescribed by a doctor.

Does valtrex cause any side effects?

Yes, some of the common side effects when taking Valtrex include, headache, dizziness, diarrhoea, itching, nausea or vomiting.

Does valtrex reduce pain?

Yes Valtrex can help to relieve pain and discomfort caused by genital herpes or shingles.

Will valtrex stop an outbreak?

It is still possible that you can experience an outbreak when taking valtrex, however Valtrex has been shown to reduce outbreaks by 70-80%.

What happens if Valtrex does not work for me?

Cold sores will usually clear on their own without the need of medicine, although it may take a little longer for an outbreak to clear naturally.

Valtrex Side Effects

Rare side effects associated with Valtrex 500mg may affect up to 1 in 1,000 people and include:

  • Altered brain function
  • Coma
  • Delirium
  • Convulsions (fits)
  • A lack of coordination, unsteady when walking
  • Speech becomes slow and slurred
  • Kidney problems (urinating very little or not urinating at all)

Always refer to the patient information leaflet for full details on side effects. If you have any concerns about side effects or how to deal with them, please do not hesitate to talk to your doctor or pharmacist about your concerns, before you start to take this treatment.

Valtrex Warnings

Some medicines can interact with Valtrex.

Before you start using Valtrex 500mg tablets, please ensure you inform your doctor or pharmacist if you are already taking any prescription or non-prescription medicines, herbal remedies, vitamins or supplements.

Valtrex suppressive treatment during pregnancy

Valtrex helps to reduce how active the virus is, reduce active cold sores that appear on the skin and also help to improve the time needed for cold sores to heal.

There is no evidence to suggest that Valtrex should not be taken during pregnancy, as such it does not appear to cause any serious side effects to mother or baby.

You should also inform your doctor or pharmacist if you are currently breastfeeding.


Valtrex Ingredients

The main active ingredient within this medicine is: Valaciclovir hydrochloride

For a full list of the inactive ingredients, please read the Summary of Product Characteristics

Valtrex Prices (UK)

Dosage Quantity Price
Valtrex 500mg Tablets 10 Tablets (1 Outbreak) £39.99
Valtrex 500mg Tablets 20 Tablets (2 Outbreaks) £64.99
Valtrex 500mg Tablets 30 Tablets (3 Outbreaks) £99.99
Valtrex 500mg Tablets 84 Tablets (3 Month Suppression) £219.99

Medically reviewed byHussain Abdeh MPharm: 2211840

Updated on: 14/01/2022

This content has been written by our Superintendent Pharmacist Hussain Abdeh and has been medically reviewed by our Pharmacist Sonia Khan

Hussain Abdeh Superintendent Pharmacist at Medicine Direct

Hussain Abdeh
MPharm: 2211840

Pharmacist Independent Prescriber

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