The combination of sofosbuvir and velpatasvir is used alone or with ribavirin (Copegus, Rebetol, Ribasphere) to treat chronic hepatitis C (an ongoing viral infection that damages the liver) in adults and children 6 years of age and older or who weigh at least 37 lbs (17 kg). Sofosbuvir is in a class of antiviral medications called nucleotide hepatitis C virus (HCV) NS5B polymerase inhibitors. Velpatasvir is in a class of antiviral medications called HCV NS5A replication complex inhibitors. The combination of sofosbuvir and velpatasvir works by stopping the virus that causes hepatitis C from spreading inside the body.
