Famvir is an antiviral medicine that helps stop the virus causing infections like shingles and genital herpes from growing, working best when taken at the first sign of symptoms.
Your doctor will prescribe the exact dosage based on the type and severity of your infection, typically 125 mg, 250 mg, or 500 mg tablets.
You can take Famvir tablets with or without food.
The maximum daily dose is typically 1500 mg, as directed by your doctor.