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- What is famciclovir, and how does it work (mechanism of action)?
- What brand names are available for famciclovir?
- Is famciclovir available as a generic drug?
- Do I need a prescription for famciclovir?
- What are the side effects of famciclovir?
- What is the dosage for famciclovir?
- Which drugs or supplements interact with famciclovir?
- Is famciclovir safe to take if I'm pregnant or breastfeeding?
- What else should I know about famciclovir?
What is the dosage for famciclovir?
Famciclovir may be taken with or without food. The recommended doses are:
- Recurrent genital herpes: 1,000 mg every 12 hours for one day.
- Recurrent cold sores: 1,500 mg as a single dose.
- Suppression of recurrent genital herpes: 250 mg twice daily.
- Shingles: 500 mg every 8 hours for 7 days.
- HIV-infected patients (cold sores or genital herpes): 500 mg twice daily for 7 days.
Which drugs or supplements interact with famciclovir?
Probenecid (Benemid) may reduce the kidney's removal of famciclovir leading to higher concentrations of famciclovir in the blood. This may lead to side effects from famciclovir.
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