Synonyms: Biopolymers, Rebetol, Rebetron, Ribamidil, Ribavin, Tribavirin, Varazid, Vilona, Virazole

Copegus (Ribavirin) is a nucleoside analog antiviral medicine that is used in combination with interferon to treat chronic hepatitis C infection. Hepatitis C is a viral infection that causes swelling or enlargement of the liver.