Zepatier is a combination medicine (elbasvir and grazoprevir) that acts as an antiviral medicine to treat long-term hepatitis C. Zepatier is used taken by adults only. Zepatier works by blocking 2 protieins required by the hepatitis C virus. In this way Zepatier prevents the virus from growing and reproducing. Zepatier removes the infection permanently. Zepatier is taken alone or in combination with other medicines including ribavirin.