Epclusa Price Usa   400mg/100mg Tablet is used in combination with other medications such as ribavirin, daclatasvir and peginterferon to treat chronic hepatitis C. It functions by reducing the hepatitis C virus in the body. This helps to keep liver disorders such as cirrhosis and liver cancer at bay. On using this medication you may experience side effects such as diarrhoea, itchiness, headache, nausea, drowsiness, rapid breathing, rapid heartbeat and skin paleness.