AVONEX: An established relapsing MS
treatment option for 2 decades*

*Initial US Approval: 1996.


AVONEX is a once-a-week injectable treatment for relapsing multiple sclerosis (MS). It has been prescribed to over 600,000 people worldwide since its approval in 1996. Today it is the #1 prescribed interferon for relapsing MS.

This information is an estimate derived from the use of information under license from the following IQVIA information service: IQVIA NPA® NBRx monthly data for the period January 2021-April 2023.

Explore more about AVONEX for relapsing MS

AVONEX effectiveness

Understand the potential benefits

See results
Safety and side effects

Get details about the serious and most common side effects

Take a look
Specific populations

See additional information on use during pregnancy and lactation

Get more info

Check out more about AVONEX

Questions for your
healthcare provider

Download a guide to help start a conversation with your healthcare provider about your relapsing MS treatment

Download guide
AVONEX Start Form

If you’re considering AVONEX, get a head start on the process by taking this form to your next visit. It includes step-by-step instructions for you and your healthcare provider

Download Start Form

Watch an AVONEX
patient video

Hear the experience of a real patient taking AVONEX