Tysabri Side Effects

Kahn Gauthier Swick is investigating possible legal actions against Biogen Idec and Elan because of two side effects related adverse events reported with the use of Tysabri (Natalizumab). Tysabri is used to treat MS (multiple sclerosis).

Typical Side Effects of Tysabri

The typical common side effects are:

• Headache
• Fatigue
• Joint pain
• Depression
• Gall bladder disorders
• Menstrual problems
• Infections
• Allergic reactions

Contact your doctor immediately if you develop signs of infection such as fever or chills; sore throat, coughing, congestion or other signs of infection; redness, pain, or swelling of a skin wound; or burning or difficult urination.

Contact your doctor immediately if you develop signs of these side effects hypersensitivity reactions including can include urticaria (hives), dizziness, fever, rash, shakes, severe itching, nausea, flushing, light headedness, shortness of breath, and chest pain.

If you experience a serious allergic reaction (difficulty breathing; closing of the throat; swelling of the lips, tongue, or face; or hives) to Tysabri, seek emergency medical attention.

The most frequently reported side effects with Tysabri in clinical trials were infections, severe or life threatening allergic reactions, depression (including thoughts of suicide), and gallbladder problems. These events occurred at rates ranging from 0.8% to 2.1%. More serious side effects were bacterial infections such as pneumonia.

If the side effects of Tysabri have harmed you, please call toll free 1-866-467-1400 now, or make a claim on this page.