Pegylated interferon (PEG-IFN) is a class of medication that includes three different drugs as of 2012: [1]
In these formulations, Polyethylene glycol (PEG) is added to make interferon last longer in the body. [3] They are used to treat both hepatitis B, [4] hepatitis C [1] and multiple sclerosis. [2]
Pegylated interferon is contraindicated in patients with hyperbilirubinaemia.[ citation needed ]