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Home / Herpes Virus / Famvir


Famvir tablets available to buy online in the UK

Genital Herpes
10 pills (£79.99)

Prices include next-day delivery and prescription

10 pills £79.99

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How to buy Famvir online?

At OnlineClinic, you can order Famvir tablets to effectively treat herpes virus. This includes an outbreak of genital herpes, cold sores, or shingles. As herpes can appear at any time, Famvir can provide preventive relief that you can buy in a pack of up to 56 tablets. As it's important to start treatment as early as you can, our quick repeat ordering service also means you can buy Famvir even faster for next day delivery.

In the UK, you need to obtain a prescription when buying medication. We provide this in the form of a free online consultation that is reviewed by one of our doctors to check Famvir is the correct treatment as well as the dosage. As it can be an inconvenience to wait for a doctor's appointment and pick up your tablets, we offer next day delivery. All of our medication is discreetly packaged, allowing you to get your treatment delivered anywhere with confidentiality and peace of mind.

What is Famvir?

Famvir (famciclovir) is an antiviral medicine used in the treatment of cold sores, shingles and genital herpes, which are all infections caused by herpes virus. This antiviral drug works by slowing down the growth of herpes virus, stopping it from spreading. This ensures that the body can successfully fight off the infection. Whilst there isn't a cure for herpes, Famvir can significantly lessen the severity of the infections.

Famvir acyclovir can be used by anyone over the age of 18 to treat infections caused by the herpes zoster virus (shingles) and the herpes simplex virus (genital herpes and cold sores). When compared to other antiviral medications, Famvir is most popular for those over the age of 50.

For cold sores and shingles, this medication will reduce painful symptoms and speed up your recovery time. When used to treat genital herpes, it can stop a full outbreak from occurring if taken as soon as you notice the first symptoms. You can buy lower doses of the medication for frequent outbreaks, to push the virus into a dormant state.

Short facts about Famvir
How to take

Take a 500mg dose 3 times a day for 7 days to treat shingles.
Take a 500mg dose 3 times a day for a week to treat cold sores.
Take a 250mg dose 3 times a day for 5 days for the first outbreak of genital herpes. 2 of these tablets should be taken daily for long-term treatment.

How it works

Famciclovir (the active ingredient) is absorbed by the body and fights the herpes virus by blocking the action of DNA polymerase (a viral enzyme). This reduces the severity of the symptoms and gives your body time to effectively suppress the virus quickly.


Famvir is proven[1] to be the best option that you can buy online to treat herpes for individuals over 50, when compared to other herpes treatments. Symptoms may improve before the infection is completely cleared.


Famvir pills are available to order in dosages of 250mg and 500mg.

Side effects

Side effects aren't very common, but may include diarrhoea, fatigue and nausea.

How does Famvir work?

The main antiviral ingredient used in this medication is famciclovir. When absorbed by the body, famciclovir becomes active and fights the herpes virus by blocking the action of a viral enzyme called DNA polymerase. The herpes virus needs this enzyme to multiply and take over your healthy cells. By preventing this, Famvir acyclovir reduces the severity of the symptoms and gives your body the time it needs to effectively suppress the virus at a faster rate.

How to take Famvir?

How you take this medication will depend very much on your individual condition, but should always be used as soon as possible after you notice symptoms:

  • To treat shingles, take one 500mg tablet three times a day for seven days
  • To treat cold sores, take a single 500mg tablet three times per day for one week
  • For the first outbreak of genital herpes that you experience, you should take one 250mg tablet three times per day for five days
  • When taken as a long-term or recurrent treatment, two 250mg tablets should be taken daily


The two dosages of Famvir that are currently available to buy from OnlineClinic are 250mg and 500mg. The 250mg dose is available in packs of 15 or 56 tablets, whilst the 500mg dose is available in packs of 30 or 56 tablets.

Side effects and precautions

This medication is very well tolerated, and is often prescribed to people of all ages, in particular those over 50. Some people using the medication may experience side effects, the most common of which are headaches or nausea. Other possible side effects include diarrhoea, vomiting, fatigue and cramps; these side effects are generally seen in less than 8% of users. Side effects usually disappear within several days of treatment, if they even occur at all. If any of these potential side effects persist, it is recommended that you contact a doctor.

When taking Famvir 250mg or 500mg tablets, it's important to take into account the following precautions, in order to ensure your safety:

  • It is recommended that this medication shouldn't be taken if you are allergic to any of the ingredients found in Famvir pills.
  • People who have problems with their kidneys (e.g. decreased kidney function) or liver (e.g. uncontrolled chronic liver disease) may be unable to use this medication.
  • Individuals with galactose intolerance may also be unable to use this Famvir.
  • Antiviral treatments are not known to cause birth defects, but women who are pregnant or breastfeeding may be advised to buy a different treatment.

Note: Decisions about treatment are for both the prescriber and the person to jointly consider during the consultation. However, the final decision will always be the prescriber’s.

Famvir information
Product nameFamvir
Active ingredient(s)Famciclovir
Lowest price£79.99
Trustpilot rating-
Trustpilot reviews-
AvailabilityIn stock
DescriptionAn antiviral medication used to treat herpes simplex and herpes zoster virus
ExemptionSubject to medical prescription
Available dosage125, 250 and 500mg
ApplicationMen and women over 18 with genital herpes and shingles
UsageTake one 250mg tablet 3 times a day for 5 days for genital herpes and take one 500mg tablet 3 times a day for 7 days for shingles
Posology Consult patient leaflet
Drug classAntivirals
Alcohol consumptionNo interaction
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