Various antiviral drugs are used to treat different viral infections:
Oseltamivir (Tamiflu): Used to treat influenza A and B. Acyclovir: Effective against herpes viruses, including herpes simplex and varicella-zoster. Zidovudine (AZT): One of the first drugs used to treat HIV. Sofosbuvir: Used in the treatment of hepatitis C. Remdesivir: Approved for use against COVID-19.