What are possible TYSABRI side effects?
TYSABRI increases your chance of getting a rare brain infection that usually causes death or severe disability. This infection is called progressive multifocal leukoencephalopathy (PML). PML usually happens in people with weakened immune systems. Other serious side effects with TYSABRI include allergic reactions, serious allergic reactions, and infections. TYSABRI may increase your chance of getting an unusual or serious infection because TYSABRI can affect your immune system. Symptoms of allergic reactions can include: • hives • chills • itching • rash • trouble breathing • nausea • chest pain • flushing of skin • dizziness • low blood pressure • wheezing Serious allergic reactions usually happen within 2 hours of the start of the infusion, but they can happen at any time after receiving TYSABRI. Tell your doctor or nurse right away if you have any symptom of an allergic reaction, even if it happens after you leave the infusion center. You may need treatment if you are having an aller
