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What are cold sores? Cold sores, also known as fever blisters, can appear on your mouth or lip and are usually caused by oral herpes or herpes simplex virus type 1 (HSV-1). “It’s extremely ...
It is comparable in effectiveness to prescription topical antiviral agents. Due to docosanol's mechanism of action, there is little risk of drug resistance. [40] Antivirals creams include acyclovir and penciclovir, which can speed healing by as much as 10%. [41] [1] Oral antivirals include acyclovir, valaciclovir, and famciclovir. [1]
Because penciclovir is absorbed poorly when given orally (by mouth) it is more often used as a topical treatment. It 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. Penciclovir was approved for medical use in 1996. [2]
Aciclovir was seen as the start of a new era in antiviral therapy, as it is extremely selective and low in cytotoxicity. [5] Since the discovery in the mid-1970s, it has been used as an effective drug for the treatment of infections caused by most known species of the herpesvirus family, including herpes simplex and varicella zoster viruses.
Prescription antiviral medications slow down viral replication so sores heal faster, but no drug can eliminate the virus entirely. ... Cold sores were first described by the Greek philosopher ...
Antiviral creams, including over-the-counter Abreva (docosanol cream), are typically the first line of defense when you develop a cold sore on your lip, he says. These creams may heal your cold ...
List of Antiviral Drugs Antiviral Use Manufacturer Component Type Year approved Abacavir: HIV: ViiV Healthcare: Nucleoside analogue reverse transcriptase inhibitor (NRTI) 1998 Acyclovir (Aciclovir) Herpes Simplex, chickenpox, [2] varicella zoster virus: GSK: guanosine analogue RTI 1981 Adefovir: Hepatitis B [3] Gilead Sciences RTI 2002 , 2003 ...
Famciclovir 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 .
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