How is interferon beta-1b (Betaseron, Extavia) administered in the treatment of relapsing-remitting multiple sclerosis (MS) (RRMS), and what are the potential adverse reactions?

Updated: Oct 08, 2019
  • Author: Christopher Luzzio, MD; Chief Editor: Jasvinder Chawla, MD, MBA  more...
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Interferon beta-1b is administered every other day subcutaneously by self-injection. The most frequently reported adverse reactions include asthenia, depression, flu-like symptoms, hypertonia, increased liver enzymes, injection site reactions, leukopenia, and myasthenia. Interferon beta-1b can be coadministered with analgesics or antipyretics to help with the occurrence of flu-like symptoms. [7]

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