Definition

A drug that is no longer available in the United States that was used under the brand name Sylatron to prevent melanoma from coming back after it has been removed by surgery and under the brand name PEG-Intron to treat chronic hepatitis C. Peginterferon alfa-2b is a form of interferon alfa (a substance normally made by cells in the immune system) that is made in the laboratory and linked to a substance called PEG, which makes the drug stay in the body longer. It is a type of cytokine and a type of immunomodulating agent.