Definition

A drug used alone or with other drugs to treat adults with AIDS-related Kaposi sarcoma, hairy cell leukemia, certain types of follicular lymphoma or melanoma, genital warts or perianal warts, or chronic hepatitis B or C. It is also being studied in the treatment of other types of cancer and other conditions. IFN alpha-2B is a form of interferon alfa (a substance normally made by cells in the immune system) that is made in the laboratory. It is a type of cytokine and a type of immunomodulating agent. Also called interferon alfa-2b, Intron A, and recombinant interferon alfa-2b.