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A 37-year-old member asked:

please tell me how long it takes for ms medcine rebif to work?

2 doctor answers4 doctors weighed in
Dr. Bennett Machanic
Neurology 52 years experience
Maybe never: Your question implies that things could do better in your case, and in absence of details, will answer generically. Rebif is an interferon, and is a member of a group of older meds that have been substantially made inferior by the newer agents coming onto the market, as drugs such as tysabri, (natalizumab) gilenya, tecfidera, are far more effective regarding relapses, disability, eventual outcomes.
Dr. Olav Jaren
Neurology 19 years experience
How quick it works: The answer depends on what you mean by "work". The medicine starts to work as soon as you take the first injection. It works by preventing future MS attacks, by interfering with the function of white blood cells that promote MS. The medicine wears off, so repeat injections may be needed.

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Last updated Nov 28, 2017

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