Ribavirin is used to treat virus infection and is taken by mouth.
Interferons are substances naturally produced by cells in the body to help fight infections and tumors. It is recombinant interferon alpha-2b and is classified as an alpha interferon. The interferon is a water soluble protein composed of 165 daltons with a molecular weight of 19,271 daltons. Intron-A injection is a clear, colorless solution. Rebetol is Schering Corporation s brand name for ribivirin.