Zovirax
® (
acyclovir) is a prescription medication used to treat the following conditions:
This article focuses on the oral forms (the ones taken by mouth).
(Click Zovirax Uses for more information on what the drug is used for, including possible off-label uses.)
Zovirax is made by GlaxoSmithKline.
Shingles, genital herpes, and chickenpox are caused by viruses. Once a person has been infected with one of these viruses, the virus never goes away. It remains inactive in certain nerve cells of the body, waiting to become active again. Zovirax is an antiviral medication that helps the body fight the infection. It does this by preventing the virus from multiplying.
Several studies have examined how well Zovirax treats shingles, genital herpes, and chickenpox.
Shingles
In studies looking at Zovirax for shingles, the drug helped shingles lesions to heal faster and helped reduce pain. It also helped to prevent nerve pain associated with shingles. Studies suggested that the medication was more effective when started within the first 48 hours after symptoms appeared and worked better in people over 50 years old.
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