Acyclovir

Drug Details

Acyclovir, also known as Zovirax, is a prescription antiviral medication used to treat infections caused by the herpes simplex virus, including genital herpes and cold sores, as well as shingles (herpes zoster) and chickenpox (varicella) in individuals aged two years and older. It comes in various forms such as oral tablets, capsules, and suspensions, which are usually taken four to five times daily, and topical creams or ointments, applied five to six times a day. Acyclovir works by inhibiting a viral enzyme called DNA polymerase, which is essential for the herpes simplex and varicella-zoster viruses to replicate. While it helps reduce the duration and severity of symptoms and speeds up the healing of sores, it does not cure herpes, prevent future outbreaks, or stop the transmission of the virus to others. Common side effects of the oral forms include nausea, vomiting, and diarrhea, whereas topical applications may cause skin irritation. It is essential to discuss your treatment options with your healthcare provider to determine the best course of action for your condition.