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Famvir

Form.

Tablets: 125 milligrams,
Tablets: 250 milligrams,
Tablets: 500 milligrams.

No Prescription

Famvir is prescribed to treat the first episode of genital herpes and to treat patients with recurrent (more than 6 episodes per year) severe genital herpes. Famvir reduces the pain and the number of sores with the first episode and decreases the frequency and severity of episodes in individuals with recurrent episodes. In the treatment of shingles, Famvir reduces pain, shortens the time in which sores heal, and limits the spread of virus and the formation of new sores. Famvir can be prescribed to treat chicken pox to reduce healing time, limit the number of sores (pox), and reduce fever if prescribed within the first 24 hours after the onset of the disease.

Famvir tablets are prescribed to treat herpes zoster, commonly referred to as "shingles," in adults. Shingles is a painful rash with raised, red pimples on the trunk of the body, usually the back. Because it is caused by the same virus that causes chickenpox, only people who have had chickenpox can get shingles. When prescribed for shingles, Famvir works best in people age 50 or over.

Famvir is also prescribed to treat attacks of genital herpes and to prevent future flare-ups. For people with HIV infections, it is prescribed as a treatment for both genital and oral herpes.

Dosage.

Famvir may be taken with or without food.
Penciclovir, the active metabolite of Famvir, is excreted mainly by the kidney, and dosages of Famvir need to be reduced in patients with kidney dysfunction.

ADULTS

Herpes Zoster

The usual adult dose is 500 mg every 8 hours for 7 days.

Recurrent Genital Herpes Treatment

The usual dose is 125 mg twice a day for 5 days.

Recurrent Genital Herpes Prevention

The usual dose is 250 mg twice a day for up to one year. Famvir therapy to prevent genital herpes has not been tested for periods exceeding one year.

Recurrent Oral or Genital Herpes in HIV-infected Individuals

The usual dose is 500 mg twice a day for 7 days. Smaller doses are prescribed for people with damaged kidneys.

CHILDREN

Safety and effectiveness in children under the age of 18 have not been established.

Side Effects.

The most common side effects associated with the use of Famvir are:
- Fatigue;
- Headache;
- Nausea;
- Vomiting;

Less common side effects include:
- Abdominal pain;
- Back pain;
- Congestion;
- Constipation;
- Dizziness;
- Fever;
- Itching;
- Joint pain;
- Loss of appetite;
- Pain;
- Shaking chills;
- Sinus;
- Sore throat;
- Tingling of the extremities;
- Tiredness;

Famvir side effects that you should report to your health care professional or doctor as soon as possible:
- Vomiting;
- Nausea;
- Headache;
- Fever;
- Fatigue;
- Dizziness;
- Diarrhea;
- Constipation;
(c) 2017