how does avonex help ms
Avonex for Multiple Sclerosis. Avonex, a formulation of interferon beta-1a, is an injectable medication from Biogen approved by the U.S. Food and Drug Administration (FDA) for patients with relapsing forms of multiple sclerosis (MS) who have had a first attack and show lesions on an MRI. Avonex injections help reduce the number of flare-ups and MS disease progression. How Avonex Works. Interferon beta-1a, the active ingredient in Avonex, is a protein found naturally in the body. It is a signaling molecule produced by cells and is used for communication.