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Zovirax Cream

"Some cryogenic wart removers—which remove warts from the skin by freezing them off—have caught fire during use at home, harming consumers or setting fire to items around the house.

Since 2009, the Food and Drug Administratio"...

Zovirax Cream

ZOVIRAX®
(acyclovir) Cream, %5

DRUG DESCRIPTION

ZOVIRAX is the brand name for acyclovir, a synthetic nucleoside analogue active against herpes viruses. ZOVIRAX Cream, 5% is a formulation for topical administration.

The chemical name of acyclovir is 2-amino-1,9-dihydro-9-[(2-hydroxyethoxy)methyl]-6H-purin-6-one; it has the following structural formula:

ZOVIRAX® (acyclovir) Structural Formula Illustration

Acyclovir is a white, crystalline powder with the molecular formula C8H11N5O3 and a molecular weight of 225. The maximum solubility in water at 37°C is 2.5 mg/mL. The pKa's of acyclovir are 2.27 and 9.25.

Each gram of ZOVIRAX Cream, 5% contains 50 mg of acyclovir and the following inactive ingredients: cetostearyl alcohol, mineral oil, poloxamer 407, propylene glycol, sodium lauryl sulfate, water, and white petrolatum.

Last reviewed on RxList: 4/15/2014
This monograph has been modified to include the generic and brand name in many instances.

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