AVONEX is approved by FDA to treat relapsing forms of multiple sclerosis (MS) to decrease the number of flare-ups
and slow the occurrence of some of the physical disability that is common in people with MS. AVONEX is approved
for use in people who have experienced a first attack and have lesions consistent with MS on their MRI.
Important Safety Information
The most common side effects with AVONEX are flu-like symptoms (fever, chills, sweating, muscle aches, and tiredness)
early during the course of therapy. Usually, these symptoms last for a day after the injection. Talk to your doctor if these
symptoms continue longer than the first few months of therapy, or if they are difficult to manage.
Please see brief summary of the Medication Guide on the following pages for additional
important safety information.