How effective is interferon beta?

Donna Hill Howes, RN
Family Practitioner

Interferon drugs reduce the number of relapses by about 30% in people with relapsing-remitting MS. They also slow disability and development of new brain lesions on MRI.

Early treatment with interferon may help prevent or delay nerve damage and disability in people with MS. Sometimes, the drug is prescribed for people who have had one episode of MS symptoms (clinically isolated syndrome), but who are not yet diagnosed with MS.

Interferon drugs can reduce the number of relapses in some people with secondary-progressive MS. But they do not prevent this type of MS from getting worse over time. 

This answer was adapted from Sharecare's award-winning AskMD app. Start a consultation now to find out what's causing your symptoms, learn how to manage a condition, or find a doctor. 

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.