Interferon is only available as a shot. You can't take interferon in pill form. Most people who use interferon take three shots per week. Each shot contains 3 million units of the drug. Certain types of HCV are easier to treat than others.
Ribavirin is a medicine that fights certain viruses.
But if you take ribavirin and interferon together, then both treatments work much better. Your doctor may take blood samples from you before, during and after your treatment. By running tests on these samples, your doctor should be able to tell how well your treatment is working.