• No image available for this medication
    • EXTAVIA

    • QTY 1
    • 0.3 MG
    • VIAL
    • Near  77381

INTERFERON BETA-1b (IN ter FEER on BAY ta 1b) treats multiple sclerosis (MS). It works by slowing down an overactive immune system, which prevents or delays worsening symptoms. It also decreases the number of flare-ups.


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