Important Safety Information
Do not take BETASERON® (interferon beta-1b) if you are allergic to interferon beta-1b, to another interferon beta, to human albumin, or mannitol. See additional Important Safety Information below.


You Should Know

Alt tag

Models used for illustrative purposes only.


An autoinjector (or auto-injector) is a medical device designed to automatically deliver a dose of a particular injectable drug

BETASERON® (interferon beta-1b)

BETASERON is a prescription medicine used to treat relapsing forms of multiple sclerosis (MS), to include clinically isolated syndrome, relapsing-remitting disease, and active secondary progressive disease, in adults.

Clinically isolated syndrome (CIS)

CIS is defined as a first neurologic event suggestive of relapsing-remitting multiple sclerosis (RRMS) lasting for at least 24 hours and with symptoms and signs indicating either a single lesion (monofocal) or more than 1 lesion (multifocal) within the central nervous system


The clinically demonstrated ability of a medication to produce a desired result or effect

Magnetic resonance imaging (MRI)

One of the tools for monitoring MS is MRI. An MRI can detect both areas of inflammation (active lesions) where damage is actively occurring and areas in which damage has already occurred. An MRI can even detect so-called “silent” lesions that appear as damaged tissue but do not result in symptoms. The exact relationship between MRI findings and the clinical status of patients is not known


A substance that has no medical effect but is administered as a control when testing the efficacy of a particular drug

Relapsing-remitting multiple sclerosis (RRMS)

About 85% of patients with MS are initially diagnosed with RRMS. People with RRMS have temporary periods, called relapses or flare-ups, when new symptoms appear. At times the MS symptoms seem to disappear, but MS is still active


Gradually increasing the delivered dosage of a particular drug over time so a patient’s body can adjust to it

Be prepared for your next doctor visit

BETAPLUS is there 24/7, BETASERON® (interferon beta-1b)

Questions? Call 1-844-788-1470

An MS-trained BETA Nurse is available 24/7 to answer your questions about BETASERON.

Start a discussion, BETASERON® (interferon beta-1b)

Don't have time to talk now?

Download and print our discussion guide.