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Interferon beta-1a

Published by U.S. Food and Drug Administration | U.S. Department of Health & Human Services | Metadata Last Checked: February 18, 2026 | Last Modified: 2025-03-17
Rebif (interferon beta-1a) is a prescription medication manufactured by EMD Serono, Inc., used to treat relapsing forms of multiple sclerosis (MS). It comes in prefilled syringes for subcutaneous injection in strengths of 22 mcg/0.5 mL and 44 mcg/0.5 mL. Approved in 2002 under BLA103780, it belongs to the interferon beta class of drugs. This information was generated using AI and is provided for informational and research purposes only.

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