• Multiple sclerosis (MS) is a chronic disease affecting the central nervous system, which results in symptoms ranging from muscle weakness to vision loss and paralysis.
• It generally strikes in early adulthood, and is more common in women than men.
• Several treatments can slow the progression of the disease, meaning that most people do not experience severe disability.
• Now, a new biosimilar injection of a current drug has been approved by the Food and Drug Administration (FDA) in the United States for use in people with relapsing forms of MS.
• The new drug, Tyruko, may mean more cost-effective treatment is available for many people with the condition.

By Katharine Lang on August 30, 2023 — Fact checked by Sarah Myers, PharmD

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