For the first episode of genital herpes, the treatment dosage is:
- Famciclovir 250mg three times a day for 7 to 10 days.
The dosage of Famciclovir to treat a recurrent episode of genital herpes (i.e., you have had genital herpes in the past and this is a recurrence) is:
- 1000mg twice daily, for a single day
- OR 125mg twice daily for five days
- OR 500mg once, followed by 250mg twice daily for two days.
The treatment works best when started at the first symptom and within 72 hours (ie. tingling, itching, burning, pain or an eruption).
The dosage of Famciclovir to treat cold sores (herpes labialis) is 1,500mg (3 x 500mg tablets) as a single dose. Treatment works best when started at the first symptom (ie. tingling, itching, burning, pain or an eruption around the lips).
How to take Famciclovir
Take the dosage and treatment length prescribed. Famciclovir does not have to be taken with food.