Wiktionary
famciclovir
n. A guanine analogue antiviral drug, a prodrug form of penciclovir, used for the treatment of herpesvirus infections such as shingles.
Wikipedia
Famciclovir
Famciclovir ( INN; ) is a guanosine analogue antiviral drug used for the treatment of various herpesvirus infections, most commonly for herpes zoster (shingles). It is a prodrug form of penciclovir with improved oral bioavailability. Famciclovir is marketed under the trade name Famvir ( Novartis).
On August 24, 2007, the United States Food and Drug Administration approved the first generic version of famciclovir.
Generic Famciclovir Tablets (125 mg, 250 mg, 500 mg) are manufactured by TEVA Pharmaceuticals and Mylan Pharmaceuticals.