Treating relapsing forms of multiple sclerosis (MS) in certain patients to reduce the number of flare-ups and to slow down the development of physical disability associated with MS. Avonex pens, prefilled syringes is a protein identical to one found in the body. Exactly how it works is not known. It is thought to interfere with certain substances in the body that cause flare-ups of MS.
Avonex (interferon beta-1a) is used to treat patients suffering from Multiple Sclerosis. The drug is an Interferon Beta that is man made and used to fight viral infections. Avonex is used to treat the symptoms and effects of the disease however, it will not cure the disease.