What is Penciclovir?

Penciclovir (INN) is a guanosine analogue antiviral drug used for the treatment of various herpesvirus infections. It is a nucleoside analogue which exhibits low toxicity and good selectivity. Because penciclovir is absorbed poorly when given orally (by mouth) it is used more as a topical treatment, and is the active ingredient in the cold sore medications Denavir (NDC 0135-0315-52), Vectavir and Fenivir. Famciclovir is a prodrug of penciclovir with improved oral bioavailability.

Questions and answers on "Penciclovir"

My 12 year old Boy has cold sores but the Doctor, she would not give him a blood test to find out if it is Herpes simplex 1 or 2 and the doctor...

doctor1 MD

Brief Answer:
Only adult usage has been studied as safe

Detailed Answer:
Hi...i understand your concern.

Lysine is found to be safe (adult studies)...

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