Interferon Beta-1b
Betaseron (interferon beta-1b) is an immunomodulating medication used to treat relapsing forms of multiple sclerosis, including clinically isolated syndrome, relapsing-remitting disease, and active secondary progressive disease. It is administered by subcutaneous injection and works by modifying the immune system's response to reduce the frequency of MS relapses.
Betaseron is an injectable interferon-based therapy used to reduce MS relapse frequency in patients with relapsing forms of multiple sclerosis.
Key facts at a glance
- RxNorm
- 82828
- Generic
- Betaseron
- Class
- brand-name
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- —
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Betaseron is FDA-approved for the treatment of relapsing forms of multiple sclerosis, including clinically isolated syndrome, relapsing-remitting multiple sclerosis, and active secondary progressive multiple sclerosis in adults.
As an interferon beta-1b, Betaseron is a cytokine that modifies immune system responses. It is believed to reduce inflammation and modulate the immune processes that contribute to demyelination in MS, though the exact mechanism is not fully characterized.
Common side effects include flu-like symptoms (fever, chills, myalgia), injection site reactions, and liver enzyme elevations. It is contraindicated in pregnancy and in patients with a history of severe depression or suicidal ideation. Regular monitoring of blood counts and liver function is recommended during treatment.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed September 3, 2026. · Read our editorial policy