TYSABRI® (Natalizumab) is a prescription medicine used to treat adults with relapsing forms of Multiple Sclerosis.

TYSABRI® is manufactured by Biogen.

Administration and Dosage:

Administration of TYSABRI® is by intravenous infusion every 4 weeks.

Common Side Effects:

The more common side effects of TYSABRI® include herpes infections, liver damage, allergic reactions, weakened immune system, and low platelet counts.

More Information:

Please read the full Prescribing Information and Medication Guide for TYSABRI® and discuss any questions you have with your doctor.

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TYSABRI® is indicated to treat:

  • Multiple Sclerosis