Omaciclovir is primarily used as an antiviral medication, particularly in the treatment of infections caused by herpes viruses. It is effective against conditions such as herpes simplex virus (HSV) infections, including genital herpes and cold sores, as well as herpes zoster (shingles). The compound works by inhibiting viral DNA replication, thereby reducing the severity and duration of outbreaks. It is also being explored for its potential in treating other viral infections, including cytomegalovirus (CMV) in immunocompromised patients. Omaciclovir is often administered orally, providing a convenient treatment option for patients. Its ability to manage symptoms and prevent recurrent episodes makes it a valuable therapeutic agent in antiviral therapy.