Acyclovir (injection)

Generic name: acyclovir (injection) [ a-SYE-klo-veer ]
Brand name: Zovirax
Dosage forms: intravenous powder for injection (1000 mg); intravenous solution (25 mg/mL; 50 mg/mL)
Drug class:Purine nucleosides

Medically reviewed by Drugs.com on Feb 26, 2021. Written by Cerner Multum.

What is acyclovir?

Acyclovir is an antiviral drug. It slows the growth and spread of the herpes virus in the body. Acyclovir will not cure herpes, but it can lessen the symptoms of the infection.

Acyclovir injection is used to treat severe infections caused by herpes viruses, including severe forms of genital herpes, shingles, herpes encephalitis (swelling of the brain), and herpes infections in people with other diseases that weaken the immune system.

Acyclovir may also be used for other purposes not listed in this medication guide.

Warnings

Follow all directions on your medicine label and package. Tell each of your healthcare providers about all your medical conditions, allergies, and all medicines you use.

Before taking this medicine

You should not use this medication if you are allergic to acyclovir or valacyclovir (Valtrex).

Tell your doctor if you have ever had:

• kidney disease (or if you are on dialysis);

• liver disease;

• breathing problems; or

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