Could a Biogen medication be right for you?

Your healthcare provider is your best source of information, especially when choosing treatment. Together, you decide what treatment may work best for you. Download these questions to help get the conversation started at your next appointment.


TECFIDERA is a prescription medicine used to treat relapsing forms of multiple sclerosis (MS), to include clinically isolated syndrome, relapsing-remitting disease, and active secondary progressive disease, in adults.

It is not known if TECFIDERA is safe and effective in children under 18 years of age.

How should I take TECFIDERA? Oral pill 2 times daily

  • TECFIDERA is taken as one pill twice a day. Take TECFIDERA exactly as your healthcare provider tells you
  • The recommended starting dose is one 120 mg pill taken by mouth 2 times a day for 7 days. The recommended dose after 7 days is one 240 mg pill taken by mouth 2 times a day
  • It can be taken with or without food
  • Swallow TECFIDERA whole. Be sure not to crush, chew, or sprinkle your pill on food
  • Protect TECFIDERA from light. You can do this by storing the pill in the original pill bottle
  • If you take too much TECFIDERA, call your healthcare provider or go to the nearest hospital emergency room right away

How could TECFIDERA help me?

See how TECFIDERA was shown in clinical studies to impact:

  • Relapses
  • Physical disability progression
  • MRI brain lesions

Who should not take TECFIDERA?

Do not use TECFIDERA if you have had an allergic reaction (such as welts, hives, swelling of the face, lips, mouth or tongue, or difficulty breathing) to TECFIDERA or any of its ingredients.

Find out more about TECFIDERA >

TECFIDERA side effects

Learn about potential side effects of TECFIDERA and tips on how to manage them.

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TECFIDERA effectiveness

Discover how TECFIDERA is shown to work against relapsing MS.

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Understanding Important Safety Information

Before taking any treatment, it’s important to understand as much about it as possible. The Important Safety Information for a treatment describes possible side effects you may experience. It also tells you what information you need to share with your doctor before starting treatment.

On this website, the Important Safety Information appears on each specific treatment page. You'll also find the Indication, which explains the specific condition that the medication was approved to treat by the FDA.