EXTAVIA (interferon beta-1b) is a prescription medication approved for the treatment of relapsing forms of multiple sclerosis (MS) to reduce the frequency of episodes. EXTAVIA is also for patients who have had a single episode and MRI findings consistent with MS.

Your doctor may recommend EXTAVIA for several reasons. Here are a few:
EXTAVIA is effective.
- EXTAVIA is proven to delay the second episode in patients with clinically isolated syndrome (CIS)
- EXTAVIA has been shown to reduce the rate of moderate-to-severe relapses
- The recommended dose of EXTAVIA is 0.25 mg taken every other day through manual injection or with the EXTAVIA Auto-Injector II
EXTAVIA doesn't need to be refrigerated as an unmixed powder. After mixing, however, EXTAVIA must be used right away or refrigerated and used within 3 hours.
EXTAVIA is administered subcutaneously. EXTAVIA is administered just under the skin using a short needle.
EXTAVIA also provides access to complimentary support services through the EXTAVIA Go Program, such as one-on-one injection training and tips from trained registered nurses.
Learn more about the EXTAVIA Go Program.
What is EXTAVIA?
Get the facts about the benefits and risks of treatment
with EXTAVIA.
Benefits of EXTAVIA
Learn more about how EXTAVIA may help you and
the importance of early treatment.
Side Effects of EXTAVIA
Find out the most common side effects of EXTAVIA.
How Is EXTAVIA Taken?
See how EXTAVIA can become a part of your life.
How Will I Pay for EXTAVIA?
You may have concerns about insurance coverage for your prescription.








