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Genital Herpes | Active ingredient(s): Valacyclovir hydrochloride | Manufacturer: GSK

For cold sores (initial outbreak) - Take two 500mg pills per day for up to ten days.
For cold sores (recurrent outbreak) - Take two 500mg pills per days for 3-5 days.
For shingles - Take two 500mg tablets three times per day for seven days.
For genital herpes (initial outbreak) - Take one 500mg tablet twice a day for up to ten days.
For genital herpes (recurrent outbreaks) - Take two 500mg tablets per day for 3-5 days.

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  • Review by a qualified doctor
  • Including prescription
  • Next-day delivery included

How to buy Valtrex online

Valtrex is available in the form of antiviral tablets that can be ordered and purchased online here. As they are a prescription treatment, you are required to complete a consultation; instead of heading to the doctors' in-person, you can order the prescription here. A free online consultation with a doctor will take place that requires you to provide details of your medical background. The doctor then sends the prescription straight to the pharmacy for preparation and dispatch.

Delivery across the UK is the next day before 1pm on orders made before 4.30pm.

What is Valtrex?

Valtrex contains the active ingredient valacyclovir and is classed as an antiviral. Available in the form of tablets, it stops the growth of the herpes virus allowing you to combat the infection within three-ten days depending on the severity of the outbreak.

Valtrex can be used to treat a number of herpes virus outbreaks including genital herpes, shingles and cold sores. The frequency and dosages will vary dependant on the herpes strain and will be provided to you by your doctor.

The herpes virus is incurable, however, outbreaks can be easily managed with the right treatment and self care. For Valtrex, it can help in the following ways:

  • Decreases the length of the outbreak considerably
  • Lessens the symptoms including tingling and burning
  • Heals sores and lesions quickly
  • You will experience fewer sores
  • Can reduce the amount of future outbreaks

You can use Valtrex to prevent future outbreaks if you experience recurrent bouts in quick succession. Primarily, Valtrex is used on a needs-be basis when an outbreak occurs.

It's important to note the herpes virus is incurable. Once you have contracted genital herpes, cold sores or shingles, it will always remain in your system. The virus is different depending on the individual, but you will find that it may remain dormant for months and even years. When an outbreak occurs, it is easily manageable with the right treatment and you will gain a better understanding regarding self help over time.

How does Valtrex work?

The herpes virus will likely remain dormant the vast majority of the time. You will begin to realise what can trigger an outbreak. This could be stress, illness, alcohol consumption or even a stage in the menstrual cycle.

Valtrex works as an antiviral medication that provides your body with sufficient protection to fight off the infection. It achieves this by stopping the virus from reproducing. This allows the body immune system to combat the existing infection, killing it off and eliminating the outbreak altogether.

In an initial outbreak, Valtrex can heal painful lesions in just over one week. In people with a reoccurring outbreak, daily treatment may heal lesions in as little as 4 four days. It has been shown to keep 65% of people outbreak-free for six months, compared to only 26% of people who did not use the drug. It may also be up to three times more successful in preventing the transmission of infection between sexual partners.

How to take Valtrex

Valtrex is very easy to take and highly effective. Depending on what you are treating, it is prescribed in the appropriate dosage and quantity suitable for genital herpes, cold sores or shingles.

Genital herpes treatment

  • For the first outbreak, take one Valtrex 500mg tablet once a day for five-ten days.
  • For recurrent outbreaks, take one Valtrex 500mg tablet twice a day, once in the morning and once in the evening.

Cold sores treatment

  • Valtrex for cold sores is taken for one day only.
  • The usual dosage is four 500mg tablets twice a day.
  • The dosage of Valtrex of cold sores can vary so follow the doctor's instructions.

Shingles treatment

  • Valtrex should be taken for seven days.
  • One dosage is two 500mg tablets three times a day. You can also take 1000mg tablets for shingles

It's recommended that you drink plenty of fluids while taking this medication. When using this drug to control outbreaks or suppress the virus from surfacing, still use treatment exactly as directed by the doctor. Stopping treatment prematurely may not provide you with full protection against the herpes virus.

In terms of sexual intercourse, when symptoms of genital herpes and cold sores are present, this is when the virus most contiguous. It is advised to avoid having sex until you finish the course of Valtrex fully. Symptoms may disappear quickly, but it is important to finish the course. Always use condoms to minimise the risk of infection.

Dosage information

The dosage may vary depending upon your medical history and the strain of herpes you have, although standard procedure is to take a tablet as early as possible. Always take Valtrex tablets exactly how the doctor recommends. Each package of Valtrex should always carry a patient leaflet as well.

Dosage should start at the first signs of infection. A 500mg tablet is to be taken twice daily for acute treatment for up to five days unless the doctor instructs you otherwise.

A lower dosage of 250mg is better suited for those who wish to prevent the symptoms from returning, which again, should be taken twice daily.

Valtrex is known to be a suitable medication for people of 50 and above, although it may not prove effective for those of a certain age who suffer with liver or kidney problems.

Valtrex Side Effects

All patients react differently when taking Valtrex depending on their tolerance towards the drug and their current state of health. This only affects around 10% of users of Valtrex. If you're using Valtrex as a preventative treatment, these side effects can lessen and disappear over time. It may cause the following side effects; headaches, abdominal pain, diarrhoea, drowsiness, nausea and sickness and mild skin reactions.

As Valtrex is only used for a brief time, if you experience side effects, these tend to pass quickly. You may find they are mild in nature as well. If the side effects you are experiencing are severe and prolonged after you've finished the treatment, please contact your doctor for further assistance.

Another precaution is an allergic reaction to Valtrex, which may include severe symptoms like a rash, hives and swelling around the face and neck. If you are having an allergic reaction, it's important to seek medical advice and get the symptoms under control.

Valtrex Precautions

As Valtrex is a prescription medication, there are some precautions to be wary off before taking. These factors should always be detailed in your consultation as well so your doctor can make an informed decision.

For some, they will not be able to take Valtrex for the herpes virus, however, there may be other treatment that is more suitable. At 121doc, we also provide Famvir that might be more appropriate for the severity of your condition.

  • Women who are pregnant or breastfeeding may not be suitable to use this treatment.
  • Drinking substantial amounts of alcohol whilst taking Valtrex may prompt side effects.
  • For mental illness, in particular depression, Valtrex may not be the best herpes treatment for you. Speak to your doctor about alternative medications.
  • Kidney or liver disease/decreased function may mean Valtrex is not suitable.
  • Valtrex might be unsuitable for individuals with HIV.
  • If you're using certain medications such as cimetidine, mycophenolate, probenecid and tenofovir.

To buy Valtrex (valacyclovir) online in the UK you must be over the age of 18 and diagnosed with the herpes virus.

To gain a prescription, complete a five minute consultation for free. This is analysed by a doctor then a prescription is sent straight to the pharmacy if Valtrex is suitable for you. It's important to begin herpes treatment soon to combat the outbreak quickly so on all orders made before 4.30pm, you'll receive the next day before 1pm.

Note: You must complete a short online consultation so that our doctor can ensure that the treatment is suitable for you. The above pricing should only be used as a reference. The final decision to issue this treatment lies with the prescribing doctor.


What is included in the online consultation?
Will a doctor review my consultation?
What happens after I submit my order?
Is the price all-inclusive?
Can I place more than one order at a time?
What are my delivery options?
Is it safe to buy prescription medication online?
How do I know which treatment is best for me?
Is this service discreet?
What is included in the online consultation?

Our consultations include general questions about your health (e.g. blood pressure levels, current and past conditions), as well as specific questions related to your selected treatment. We will also request relevant personal information to complete payment and delivery.

All questions are necessary, and your answers and details will not be shared with any third-parties. Only our doctors have access to your medical information.

Will a doctor review my consultation?

It is a legal and medical requirement that a doctor first reviews all completed consultations. We have a team of in-house doctors and specialists who will ensure your selected treatment is safe for your use. All information is stored securely and confidentially.

Please note, we do not guarantee that our doctors will approve treatment.

What happens after I submit my order?

Your consultation will be sent directly to our medical team, where it will be reviewed by one of our doctors.

If your chosen treatment is deemed suitable for your use, they will issue a prescription. Your prescription is then forwarded to our pharmacy, where your medication will be dispensed and dispatched for courier delivery.

Is the price all-inclusive?

Yes. All 121doc orders include a medical consultation, a prescription and next-day delivery. There are no additional costs. We believe in providing a safe and easy-to-use service.

Can I place more than one order at a time?

Yes. However, certain medications may negatively interact with each other. Our doctors may not approve your order on this basis.

You can place multiple items in one basket, and complete a consultation for all.

If you wish to place a second order for a different medication, you will have to complete a separate consultation.

What are my delivery options?

We offer several delivery options:

  • Next-day delivery
  • UPS Access Point - convenient parcel drop-off and collection near your home or work address
  • Nominated-day delivery - choose the most convenient day for delivery

All these options can be tracked and require a signature on delivery. If you are not available, a friend or relative can sign in your place.

None of these options will incur an additional charge.

Is it safe to buy prescription medication online?

To ensure you are purchasing from a reputable company, you should look to see their country’s regulatory bodies verify them.

In the UK, this is the Care Quality Commission (CQC) and the Medicines and Healthcare products Regulatory Agency (MHRA).Certificates can be viewed here.

How do I know which treatment is best for me?

Some treatments also offer the 'Advise Me' function. You will be asked questions about your lifestyle and needs, plus medical questions. You will then be presented with the advice of our doctors.

Is this service discreet?

Our patients’ privacy is of utmost importance. All your medical information is securely stored and only viewed by our doctors. We do not share your details with third-parties. We are also regularly inspected by various UK regulatory agencies, such as the Information Commissioner's Office (ICO).

All orders will only show on invoices, bank statements, etc. as ‘HHC Ltd’.

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How does it work?

Select Select your treatment and complete our online consultation.
Free consultation


Select a condition here or use the top menu. For every condition, we provide you with information as well as the treatments we currently offer. If you don’t know which is best for you, just click the 'Advise-me' button.


If you know what you want, the quickest way to find a specific medication is to use the search bar here.


Every order starts with an online consultation. We will ask you medical questions to make sure only treatment that is safe and effective is prescribed. We take into account your lifestyle, health and any other medications you’re currently using.

The consultation is completely free, and takes between 5 and 10 minutes of your time.

All your information is safe with us. We don’t share it with anyone unless you want us to.


If you need any guidance, you can call, message or email our customer service team via the ‘How can we help you?' section here.

Prescribe Our doctors review your order.
Free prescription


As soon as you place the order, one of our doctors will review your consultation. On working days, this usually takes around one hour.


If the doctor has any additional questions, you will receive a phone call and an email. We understand you might be at work or busy. Our customer service representatives are always discreet and can call back at a more convenient time if necessary.

Our emails never contain any personal or medical information, only a link to your private account on our website (where you will find your messages).


Once our pharmacy receives your prescription, you will get a second email with your package tracking code.

Deliver Expect your delivery the next working day.
Always free. Discreet packaging.
Free next-day delivery


All orders include next-day delivery. Alternatively, you can select a delivery date that suits you better.


We also provide a free UPS Access Point service. Pick up your package from one of many collection points across the UK.

With your tracking code, you will know the estimated delivery time. All we need is your signature (or a friend‘s or relative’s).


All parcels are plainly labelled; there is no logo or any indication of its contents. Inside, you will find your treatment as well as a patient leaflet in your chosen language.

Repeat Subscribe and save with our repeat service. Never miss a dose again.
10 to 15% off


With 121doc’s Subscribe & Save service, you can automatically receive your treatment every few weeks or months.

The order will be generated by us, using the information you provided (including delivery frequency). You don’t have to do anything. Payment is taken two days before shipping.


There are two ways to subscribe. The first is during the order process. The second is via your profile here.

You can cancel or amend your repeat prescriptions at any time.


There are no sign-up fees with this service. Plus, you get a 10% discount off all future prescriptions, increasing to 15% after six orders!