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About AVONEX Injections

AVONEX is an intramuscular injection. With a single injection into your muscle, AVONEX helps fight your MS all week long.

Consider injection-related side effects

Side effects, and the impact they may have on you, should be an important part of your relapsing MS treatment choice. The most common side effect reported with AVONEX is flu-like symptoms (FLS). Learn more about FLS and possible ways to manage them.

It's also important to consider injection site reactions when you talk to your doctor about treatment options.

Injection site reactions (ISRs)

People on AVONEX may experience injection site reactions (ISRs). ISRs are skin reactions right around an injection site, and can include swelling, pain, itching, and lumps. In clinical studies:

  • 3% of people taking AVONEX had ISRs
  • 6% had injection site inflammation
  • 8% had injection site pain

Please see below for additional important safety information.

Injection help when you need it

Proper training with an ActiveNurse™ can help you get comfortable with the process of injecting and get the most out of your treatment. Call 1-800-456-2255 to schedule a free training visit, whether you're using AVONEX PEN® or an AVONEX syringe.

In addition to training you, an ActiveNurse can train a care partner to help give you your once-a-week AVONEX. Either way, you can contact an ActiveNurse at any time for more advice after you've had your injection training. You can even request additional training sessions—whatever it takes to help you get used to your injections.

So whether you're newly diagnosed, or already on another MS therapy, there's never been a better time to ask your doctor if once-a-week AVONEX is right for you.


Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Please see the full Prescribing Information and Medication Guide for additional important safety information. This information is not intended to replace discussions with your healthcare provider.


Kelly: Why I choose AVONEX


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