Tysabri
Tysabri ingredients
| Active ingredient | Strength |
|---|---|
| Natalizumab | 300 mg/15mL |
What Tysabri is used for
The FDA lists the approved uses on the official label (below). In the EU, natalizumab is approved as Tysabri for:
Tysabri is indicated as single disease modifying therapy in adults with highly active relapsing remitting multiple sclerosis for the following patient groups: Patients with highly active disease activity despite a full and adequate course of treatment with at least one disease modifying therapy (DMT) (for exceptions and information about washout periods see sections 4.4 and 5.1) or Patients with rapidly evolving severe relapsing remitting multiple sclerosis defined by 2 or more disabling relapses in one year, and with 1 or more Gadolinium enhancing lesions on brain MRI or a significant increase in T2 lesion load as compared to a previous recent MRI.
EU wording from the European Medicines Agency; US approved uses can differ.
Key facts
- Brand
- Tysabri
- Generic name
- Natalizumab
- Made by
- Biogen Inc.
- Forms
- Injection
- Given
- Intravenous
- Drug class
- Integrin Receptor Antagonist
- FDA approval
- Biologic licence (BLA) BLA125104
- On the US market since
- 2004
Official information
- MedlinePlus drug information (search for Natalizumab)
In India
- Natalizumab: 1 brand in India
Specialist medicine: started and supervised by a specialist doctor or hospital. This page is a plain-language summary of public official information, not medical advice; follow your doctor and the official product information.
Common questions
What is Tysabri?
Tysabri (Natalizumab) is a specialist medicine made by Biogen Inc., approved by the US FDA.
What are the ingredients of Tysabri?
Tysabri contains Natalizumab (300 mg/15mL).
Is Tysabri approved in Europe?
The same active substance is approved in the EU as Tysabri.
From the FDA National Drug Code directory (open.fda.gov, public domain) and the European Medicines Agency medicines list. Page made 5 November 2026 by Satya Babu.
← All specialty medicines, USA