Acyclovir ointment is typically prescribed to treat certain types of genital herpes infections and cold sores. It helps the body fight the infection by preventing the virus from multiplying. Prior to using acyclovir ointment, tell your healthcare provider if you have any allergies, are pregnant, or are breastfeeding. Possible side effects can include mild pain, itching, and swelling.
What Is Acyclovir Ointment?
Acyclovir ointment (
Zovirax® ointment) is a prescription antiviral medication approved for the following uses:
- Treating an initial genital herpes infection (but not subsequent outbreaks) in people with normal immune systems
- Treating non-life-threatening genital herpes or cold sores in people with weakened immune systems (such as those with HIV or AIDS).
This article refers to the ointment form of acyclovir, which is different from the cream form
(see Acyclovir Cream).
Who Makes Acyclovir Ointment?
Acyclovir ointment is made by Biovail Pharmaceuticals.
How Does Acyclovir Ointment Work?
Genital herpes and cold sores are caused by viruses -- specifically, the herpes simplex viruses (HSV). Acyclovir ointment is an antiviral medication that helps the body fight the infection. It does this by preventing the virus from multiplying.
It is important to understand that once a person has been infected with these viruses, they never go away. They remain inactive in certain nerve cells of the body, waiting to become active again. Treatment with acyclovir ointment does not prevent future outbreaks of genital herpes or cold sores.
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