acyclovir
Acyclovir is an antiviral medication primarily used to treat infections caused by certain types of viruses, particularly the herpes simplex virus and varicella-zoster virus. It works by inhibiting the virus's ability to replicate, helping to reduce the severity and duration of outbreaks, such as cold sores, genital herpes, and shingles.
This medication can be taken orally, applied topically, or administered intravenously, depending on the severity of the infection. While acyclovir is effective in managing symptoms, it does not cure the underlying viral infections, and patients may experience recurrent outbreaks.