Famvir (Famciclovir)

Famvir is an active drug against viruses (antiviral). It is indicated for the treatment of herpes zoster, including ophthalmic herpes (zoster ophthalmicus) due to herpes and genital herpes and prevention of its recurrence.

This applies to both patients and patients with intact immune system with a weakened immune system.

In patients over 50 years with shingles resp. ophthalmic herpes, early treatment with Famvir (within 72 hours after the onset of rash) may have a beneficial effect on the appearance of herpetic pain associated with shingles resp. ophthalmic herpes.

Treatment with Famvir should be started as soon as possible after the first signs of infection.

This medication should be used only on prescription.

More information

What does it take into account outside the treatment?

Your doctor has prescribed this drug for the treatment of your current condition. The virostatic contained in Famvir is not active on all micro-organisms that cause infectious diseases. The use of a misnomer virostatic or used improper dosage can cause complications. So you should not use this medicine on your own to treat other diseases or others. Similarly, in case of subsequent new infection, do not use Famvir without consulting your doctor again.


When Famvir should not it be used?

Do not take Famvir if you are hypersensitive to the active ingredient famciclovir.


What are the precautions to be observed when taking Famvir?

Tell your doctor if your kidneys are not functioning normally, in such a case, he will prescribe an appropriate dose, which may differ from those mentioned below under “How to use Famvir?”.

There is no experience of this medicine in children.

If you are pregnant or breastfeeding, report this fact to your doctor before you start taking it.

In case of genital herpes virus infection, avoid sexual contact, otherwise the partner might be contaminated (see “What does it take into account outside the treatment?”).

Tell your doctor or pharmacist if you suffer from other diseases, if you are allergic or if you take other medicines (bought yourself!).

Pregnancy / Breastfeeding

Famvir can be taken during pregnancy or breastfeeding?

If you are pregnant or planning to become pregnant soon, you must be prudent to use the least amount of medication and take Famvir as directed by your doctor. The same goes for taking Famvir during breastfeeding.

Dosage / Instructions

How to use Famvir?


Unless medically prescribed, the dosage is as follows:

a) Patients with an intact immune system


Daily dose: 2 × 500 mg. Duration: 7 days.

Patients over 50 years: Prevention herpetic pain

Daily dose: 3 × 500 mg. Duration: 7 days.

Ophthalmic herpes (zoster ophthalmicus)

Daily dose: 3 × 500 mg. Duration: 7 days.

Genital herpes

– First Episode

Daily dose: 250 mg × 3 or 3 × 2 tablets of 125 mg.

Duration: 5 days.

– Recurrent infection

Daily dose: 2 × 125 mg. Duration: 5 days.

– Prevention of recurrent infection

Daily dose: 2 × 250 mg. Duration: according to doctor’s prescription.

b) Patients with a weakened immune system


Daily dose: 3 × 500 mg. Duration: 10 days.

Genital herpes

Daily dose: 2 × 500 mg. Duration: 7 days.


Lack of experience of this medicine in children, Famvir should not be used in children.


Swallow the film without chewing tablets with water. Famvir can be taken regardless of meals.

– Patients with an intact immune system shingles prevention of post-herpetic pain in patients over 50 years, ophthalmic herpes, and the first episode of genital herpes should normally take Famvir at sunrise, mid-day and / or at bedtime.

– Patients with a weakened immune system shingles: take a coated tablet at sunrise, mid-day and at bedtime. Genital Herpes: Take a coated tablet at sunrise and sunset.

– Recurrent genital herpes and prevention of recurrences of genital herpes to a film-coated tablet at sunrise and another at bedtime.

In case of impaired kidney function, your doctor will adjust the dose accordingly.

If you forget to take a film-coated tablet, take it as soon as you remember. Then take the next dose at the usual time and continue as above.

Once the virostatic treatment was begun, it must continue as long as the doctor has prescribed. The symptoms often disappear before the complete cure of the infection. Too short a period of treatment or premature discontinuation of treatment may lead to a new outbreak of the disease.

Do not change the prescribed dosage on your own. Talk to your doctor or pharmacist if you think that the effectiveness of your medicine is too weak or too strong.


What side effects Famvir can it be?

In some patients, Famvir can cause headaches, nausea, diarrhea, drowsiness, vomiting, abdominal pain, rash, disorientation and, especially in the elderly, dizziness. These symptoms are usually mild.

Indicated for patients with renal dysfunction: when dose adjustment has not been made, there was rarely kidney failure.

If you notice any other not listed here and you suspect to be related to taking Famvir, consult your doctor or pharmacist symptoms.

Special Notes

What should we be considered?

The medication shall be kept away from children.

Keep the medication away from moisture and not above 30 ° C.

The drug can not be used beyond the date printed on the package marked “EXP”.

At the end of treatment, return any remaining unused and your doctor or pharmacist, who will take care of destroying drugs.

About Genital Herpes: This disease is transmitted through sexual contact. The risk of contamination of your partner is increased during acute episodes. If you notice any signs of the disease (itching, tension, vesicles, pain), do not have sex, even if you have already taken treatment of genital herpes.

For more information, consult your doctor or pharmacist, who have the detailed information for the medical profession.

Check this page to choose other treatment for herpes.