Taken as one pill twice a day, Tecfidera® (dimethyl fumarate) was shown to work against relapsing multiple sclerosis (MS) in clinical trials. Learn about its potential benefits and risks, and find out what it may be like to take it. You can also get tools, tips, and resources to help you have a productive conversation with your healthcare provider.

TECFIDERA effectiveness

Find out more about the results
of clinical trials.

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Safety and side effects

Learn about the potential side effects of TECFIDERA.

Learn about safety
Before taking TECFIDERA

Read about what to know before treating with TECFIDERA.

Take a look

Find out how to take TECFIDERA and learn what you could expect from your first weeks of treatment.

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