Ribavirin is a chemically-derived synthetic nucleoside analogue of guanosine that has a broad spectrum anti-viral effect by inhibiting RNA polymerase of various RNA viruses.

Around 200 million people worldwide are infected with hepatitis C (about 3.3% of the world‘s population) and over 80% are chronically infected, with 3-4 million new infections each year.

* Datamonitor 2005