Tysabri Infusion

A healthcare provider may prescribe Tysabri^® (natalizumab) when other treatments for Crohn's disease or multiple sclerosis (MS) have not worked. This medicine comes as an injection that is slowly given in a vein (intravenous, or IV, infusion). Tysabri can help slow down the progression of disability and decrease the number of flare-ups (periods of disease relapse) in people with multiple sclerosis. It is also approved to reduce symptoms of moderate-to-severe Crohn's disease.

 

When receiving the Tysabri infusion, the standard dose is 300 mg once every four weeks. It takes approximately one hour to receive the entire dose. Regardless of whether you receive Tysabri for multiple sclerosis or Crohn's disease, you will be carefully monitored while receiving your dose and for at least one hour after the dose is given to make sure you do not develop allergic reactions.