Uses of Interferons • Hairy-cell leukemia - interferon alfa-2a (Roferon-A), interferon alfa-2b • AIDs-related Kaposi’s sarcoma - interferon alfa-2a (Roferon-A), interferon alfa-2b • Chronic myelogenous leukemia - interferon alfa-2a (Roferon-A) • Malignant melanoma - interferon alfa-2b • Hepatitis B - interferon alfa-2b • Hepatitis C - Ribavirin combined with interferon alfa-2b, interferon alfacon-1 (Infergen), pegylated interferon alfa-2b, and pegylated interferon alpha-2a • Multiple sclerosis - interferon beta-1b (Betaseron), interferon beta-1a (Avonex), and peginterferon beta-1a (Plegridy) • Perianal and genital warts by HPV - interferon alfa-n3 (Alferon-N) • Chronic granulomatous disease - interferon gamma-1B (Actimmune) • Malignant osteoporosis - interferon gamma-1B (Actimmune)