The recommended dosage of Famvir is 250 mg three times daily for seven days. Treatment should be initiated as soon as possible after herpes zoster is diagnosed. Studies have shown Famvir to be of benefit when started within 72 hours of the onset of rash. Greatest benefit occurs if Famvir is started within 48 hours.
Does famciclovir work cold sores?
Famciclovir is used to treat herpes zoster (shingles; a rash that can occur in people who have had chickenpox in the past). It is also used to treat repeat outbreaks of herpes virus cold sores or fever blisters in people with a normal immune system.
Is famciclovir better than Valacyclovir?
Conclusion: Valacyclovir appear to be somewhat better than famciclovir for suppression of genital herpes and associated shedding. Further comparative trials of antiviral drugs for various indications should be performed as acyclovir and penciclovir appear to have different ability to abrogate HSV reactivation.
How much famciclovir should I take for a cold sore?
For treatment of recurrent herpes labialis (cold sores): Adults—1500 milligrams (mg) as a single dose. Children—Use and dose must be determined by your doctor.
What is famciclovir 500 mg used for?
Famciclovir is used to treat the symptoms of herpes zoster (also known as shingles), a herpes virus infection of the skin. It is used to treat and suppress herpes labialis (cold sores) and recurrent episodes of genital herpes infection.
Can you still get famciclovir?
Famciclovir oral tablet is available as a generic drug. It’s not available as a brand-name drug. Famciclovir comes only in the form of a tablet you take by mouth. Famciclovir is used to treat or prevent outbreaks caused by oral herpes, genital herpes, and shingles.
What happens if you take too much famciclovir?
If you take too much: You could have dangerous levels of the drug in your body. Symptoms of an overdose of this drug can include: headache. nausea.
