What is the drug sofosbuvir used for?It is a drug called Sofosbuvir 400 mg which is mainly used to treat chronic hepatitis C virus (HCV) infection. It is often used in combination with other antiviral drugs, such as ribavirin, peginterferon-alfa, or other direct-acting antiviral agents, to effectively treat different genotypes of hepatitis C. And Sofosbuvir Price works by interfering with the reproduction of the hepatitis C virus, ultimately reducing it. And its presence in the body helps prevent liver damage and complications associated with chronic hepatitis C infection.