for illustration purposes

Valaciclovir Tablets

From £22.89 See Prices

Valaciclovir is an antiviral medication used to treat and suppress genital herpes. It can help to reduce the number of outbreaks and ease the symptoms of an outbreak. Valaciclovir is the prodrug of aciclovir and is also available as a branded product Valtrex.

  • Next Day Delivery Next Day Delivery
  • Plain & Discreet Packaging Plain & Discreet Packaging
  • Confidential Service Confidential Service
  • UK registered service UK registered service
From £22.89
See Prices
See Reviews
Estimated Delivery :
if ordered with in the next :
Orders are dispatched upon approval from our Pharmacy Team.

Valaciclovir PRICES

Medicine x10 Tablets (One Outbreak) x20 Tablets (Two Outbreaks) x30 Tablets (Three Outbreaks) x84 Tablets (Three Month Suppression)
Valaciclovir 500mg Tablets (One Outbreak) £22.89
Valaciclovir 500mg Tablets (Two Outbreaks) £43.89
Valaciclovir 500mg Tablets (Three Outbreaks) £59.89
Valaciclovir 500mg Tablets (Three Month Suppression) £139.89

ABOUT Valaciclovir Tablets

Buy Valaciclovir 500mg Tablets Online

You can buy valaciclovir 500mg tablets online from our UK registered pharmacy, by completing an online questionnaire. Your consultation will be assessed by a pharmacist before dispatch.

What is valaciclovir?

Valaciclovir, sometimes referred to as valacyclovir, is an antiviral medicine that is used to prevent and treat infections, including genital herpes and cold sores. It is also sold under the brand name Valtrex, and commonly referred to as, generic Valtrex.

Valaciclovir is used to reduce the length and severity of outbreaks, helping sores to heal faster, as well as preventing new sores from forming. It can also help to reduce symptoms associated with herpes

Valaciclovir can also be taken over a long period of time to suppress outbreaks in those that experience recurrent episodes of genital herpes.

Valaciclovir can also help to ensure that you are less likely to transmit the infection onto someone else. It is also possible to pass genital herpes on through sexual contact, but you are more likely to do so when experiencing symptoms such as sores. Valaciclovir helps to keep the virus under control, minimising the chances of spreading the infection.

How does valaciclovir work?

Valaciclovir tablets work by changing the DNA of the herpes simplex virus, so that it is unable to replicate. This means that the virus is unable to grow, helping the body’s immune system to attack the virus, inactivating it. This helps to reduce the severity of symptoms, and the length of an outbreak. 

It is important to note that valaciclovir will not cure herpes, as there is currently no cure available. 

Valaciclovir dosage

Valaciclovir 500mg dosage according to the BNF:

Dose for genital herpes outbreaks

Those that are experiencing an outbreak should take valaciclovir 500mg (1 tablet), twice daily for 3-5 days.

The best time to take valaciclovir is at the start of an outbreak. This will help to increase the effectiveness of treatment.

Dose for genital herpes suppression

Those that are using valaciclovir as a suppressive treatment to prevent regular outbreaks should take valaciclovir 500mg (1 tablet) daily.

Treatment is usually taken for a duration of 6-12 months after which it is stopped temporarily. Because valaciclovir is not an antibiotic, treatment can be used long term without running the risk of developing resistance. Although rare, long-term use of valaciclovir can weaken the immune system so it is important to take a break from treatment after 6-12 months.

How to take valaciclovir

Valaciclovir tablets should be swallowed with water, and the doses should be spread evenly throughout the day. You should complete the prescribed course unless told otherwise. 

Even if you feel that your condition is improving, you should finish the full course of valaciclovir. The length of the course is likely to be determined by the type of infection you have and your response to treatment. 

What if I forget to take a dose?

If you forget to take a dose, take it when you remember, unless it is time for the next dose, in which case the missed tablet should be omitted.

How long does valaciclovir tablets take to work?

Treatment is usually effective soon after you have started taking it, and symptoms usually begin to ease after the first day. Valaciclovir will also help to reduce the length of an outbreak by a few days. 

Those that are taking valaciclovir to suppress herpes should notice a decrease in the number of episodes. Valaciclovir is effective in treating genital herpes and has been used for many years, however, if you feel that it is not making a difference, please consult your doctor to discuss alternatives.

Valaciclovir side effects

Side effects of valaciclovir include headache, dizziness, diarrhoea, itchy skin, nausea, and vomiting. It is important to drink plenty of water and stay hydrated when taking valaciclovir tablets, to avoid dehydration.

Who should not take valaciclovir tablets?

Valaciclovir tablets are not suitable for those:  

  • That have allergies to any of the product ingredients
  • Above the age of 65
  • With a weakened immune system
  • With conditions that affect the nervous system and those with liver or kidney problems


We are unable to prescribe valaciclovir for those taking medication that affect the liver or kidney such as: 

  • Aminoglycosides
  • Ciclosporin
  • Cimetidine
  • Foscarnet
  • Iodine
  • Methotrexate
  • organoplatinum compounds
  • Pentamidine
  • Probenecid
  • Tacrolimus

Can I take valaciclovir tablets if I am pregnant or breastfeeding?

Valaciclovir can be used in pregnancy and breastfeeding, but we are unable to prescribe this online, as this practice is best done under the supervision of a doctor. 

If you have developed genital herpes for the first time whilst pregnant, it is important to see your doctor immediately, to avoid passing this onto your baby. 

If you have experienced episodes of genital herpes before pregnancy, it is unlikely that you will pass this onto your baby as the antibodies you have developed to deal with the virus will be temporarily passed onto your child during birth. You should still let your doctor know that you have herpes.

Valaciclovir vs Valtrex

Valaciclovir and Valtrex both contain the same active ingredient, valaciclovir hydrochloride. Any differences will be in the inactive ingredients, which do not affect treatment.

Valaciclovir vs aciclovir

Valaciclovir and aciclovir are both antiviral drugs and are similarly effective in the disruption of viral DNA replication. When valaciclovir enters the body, it converts rapidly into aciclovir. Both valaciclovir and aciclovir are treatments for the same viruses, including genital herpes, cold sores, chickenpox, and shingles.

The main difference between valaciclovir and aciclovir, is their duration of action in the body. Valaciclovir is effective for a longer period, which is why it requires less frequent dosing. While aciclovir tablets are taken three times a day for an outbreak, valaciclovir tablets are taken only twice a day. For suppression therapy, aciclovir is taken twice a day, whilst valaciclovir is taken once a day.

Can you take paracetamol and valaciclovir together?

There is no direct interaction between valaciclovir and paracetamol, and they can safely be taken together. You can also take valaciclovir tablets with ibuprofen.

Can I drink alcohol?

There is no interaction between alcohol and valaciclovir tablets, and you may drink whilst taking treatment. If you are experiencing an outbreak, it is advisable to avoid drinking in excess, as this can impair your immune system, which may slow down your recovery rate.

Can you get valaciclovir over the counter?

Valaciclovir is not available over the counter and requires a prescription. You are able to buy valaciclovir 500mg by completing an online consultation. If deemed suitable, a prescription will be issued, and we can provide you with treatment.

Can you get valaciclovir on the NHS?

Valaciclovir is available on the NHS. However, as it is more expensive than aciclovir, it is at the discretion of your doctor whether or not they will prescribe valaciclovir as opposed to aciclovir.

What brands of valaciclovir do you stock?

Valaciclovir tablets are produced by a number of different drug manufacturers, such as Mylan, Sandoz, Actavis & Teva. There is no medical difference between any of these brands and we stock whatever is available in the market. If you have a specific brand preference, please let us know beforehand.

Last Updated

Valaciclovir side effects

What are the side-effects of valaciclovir?

Many people who take valaciclovir do not experience any side effects. 

Common side effects of valaciclovir include: 

  • Stomach ache and upset
  • Nausea
  • Feeling dizzy or light headed
  • Headache
  • Skin irritation

If any of these side effects persist or get worse, you should inform your doctor or pharmacist. 

Serious side effects from valaciclovir are rare. If you experience any serious side effects listed below, you should contact your doctor immediately:

  • Mood swings
  • Hallucinations
  • Confusion
  • Shaking
  • Agitation

Patient Information Leaflet

For more information about Valaciclovir Genital Herpes Treatment, take a look at the patient information leaflet below: 


Where can I find out more information about Valaciclovir?

To find out more information about Valaciclovir, visit the NHS website.


Articles you may be interested in:

Genital Herpes - Your Questions Answered

What is the best genital herpes treatment?

Is There a Genital Herpes Cure?

Chlamydia - Common Questions Answered

Product Reviews For Valaciclovir Tablets


In general, valaciclovir has been given positive feedback from users, who value its effectiveness in treating herpes outbreaks, as well as chickenpox and shingles. Those who complete a full course of valaciclovir as directed have praised the medication’s ability to reduce the symptoms of viruses. 

A number of users with the herpes virus have expressed their happiness that valaciclovir has allowed them to live a normal life after symptoms had made them miserable. 

A contributor to with herpes reported: “I was getting frequent outbreaks and was very miserable. I felt I would never be normal again. Started this treatment and it improved my daily and intimate life by a milestone.”

A contributor to with shingles reported: “I'm not sure how long I have been infected but I have been taking the medication for five days and the pain has stopped.”

A contributor to with herpes reported: “Before starting valaciclovir I was having outbreaks every 4-6 weeks. I have been taking 1 gram daily for a year now, and I am happy to say that this drug has greatly reduced the number of outbreaks I experience. Currently, it has been 5 months since I have had symptoms.”

Overall, valaciclovir is reported as being an effective genital herpes treatment.

To find out more about genital herpes, take a look at the follow articles that Chemist Click have produced:

See over 9 product reviews

Product rated 5/5

Valaciclovir Tablets
Suitable for purpose of purchase

By Prince Humble, 28th of August

Valaciclovir Tablets
Worked well

By MR Abdull, 26th of May

Valaciclovir Tablets
It is perfect for restricting the spread and severity of cold sores

By Mags Farley, 07th of April

Valaciclovir Tablets
Helped heal cold sores very efficiently.

By Regina Padden, 25th of June

Valaciclovir Tablets
Works very well for treating cold sores

By Regina Padden, 06th of June

See More Reviews


Aciclovir Tablets
Aciclovir Tablets
From £9.89
Valtrex Tablets
Valtrex Tablets
From £218.49