About

It is classified as a nucleoside analogue, meaning it interferes with the DNA synthesis of the virus, preventing it from multiplying and spreading in the body. The medication is most commonly prescribed for the treatment of genital herpes, herpes labialis (cold sores), herpes zoster (shingles), and varicella-zoster virus infection (chickenpox). It can also be used for other viral infections such as Epstein-Barr virus, cytomegalovirus, and herpes simplex encephalitis. Aciclovir is available in various forms including tablets, creams, and intravenous injections. The choice of administration depends on the severity and location of the infection. The medication is generally well-tolerated, with the most common side effects being nausea, vomiting, and headache. Rare but serious side effects may include kidney problems, seizures, and an allergic reaction. It is important to use aciclovir as prescribed and complete the full course of treatment to ensure its effectiveness. Aciclovir was first discovered in the 1970s and has since become a widely used antiviral medication. It is included on the World Health Organization's List of Essential Medicines, which identifies the most effective and safe medicines needed in a healthcare system.