Famvir Dosage (Cont.)

 
Genital Herpes Suppression
For preventing future outbreaks of genital herpes, the recommended dose of Famvir is 250 mg twice daily for up to one year. After one year, you should visit your healthcare provider to decide whether or not to continue Famvir.
 

Famvir Dosing for Cold Sores

The recommended Famvir dose for treating cold sores is a single dose of Famvir 1500 mg at the first signs of a cold sore.
 

Famvir Dosing for People With HIV

The recommended Famvir dose for people with HIV for treating cold sores or genital herpes is Famvir 500 mg twice daily for seven days.
 

General Information on Dosing With Famvir

Some considerations for people taking Famvir include:
 
  • Famvir comes in tablet form and is taken by mouth. For some uses, it is taken every day; for other uses, it is taken just for a day or for a week.
     
  • Famvir can be taken with or without food. If the drug bothers your stomach, try taking it with food.
     
  • For the medication to work properly, it must be taken as prescribed. Make sure to take Famvir as your healthcare provider prescribes.
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Written by/reviewed by: Kristi Monson, PharmD; Arthur Schoenstadt, MD
Last reviewed by: Kristi Monson, PharmD;