TYSABRI Basics

Is your relapsing MS medication doing enough?

TYSABRI is usually taken by someone who has seen their physical disability worsen or who hasn't seen the results they'd hoped for with another therapy. And, unlike daily or weekly medications, TYSABRI is given every 4 weeks as an infusion. So, if you're considering TYSABRI to treat your relapsing multiple sclerosis (MS), take some time to learn more about it, making sure to carefully weigh the benefits and risks. That way, you and your doctor can make the decision that's right for you.

In this section you'll learn:

• Could TYSABRI Be Right for You?
  A quick overview of who usually receives TYSABRI, as well as who shouldn't take it and why.
• What TYSABRI Does
  A detailed look into the 3 key benefits of TYSABRI, and how it works.
• How TYSABRI Is Taken
  It's an infusion, administered by a healthcare professional every 4 weeks.
• Potential Side Effects
  TYSABRI does have possible side effects, in addition to the risk of PML, a rare but serious brain infection.
• How to Evaluate Your Risk of PML
  Learn about PML, and how a blood test can help you and your doctor assess your risk.