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Category Archives: Tysabri

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New Tysabri PML Risk Factor Identified

The Food and Drug Administration has identified a new risk factor which could lead to the life-threatening brain infection known as progressive multifocal leukoencephalopathy (PML) associated with the use of the drug Tysabri. Tysabri is prescribed as a “last resort” … Continue reading

Posted in Pharmaceuticals, Tysabri |

FDA Announces Tysabri Label Update

Last week, the U.S. Food & Drug Administration (FDA) announced it was updating the label of < "http://www.yourlawyer.com/topics/overview/tysabri">Tysabri (natalizumab) to include additional information about the risk of progressive multifocal leukoencephalopathy (PML), a rare but serious brain infection. According to a … Continue reading

Posted in Pharmaceuticals, Tysabri |

Tysabri Label Modified to Include More Brain Infection Data

< "http://www.yourlawyer.com/topics/overview/tysabri">Tysabri, the multiple sclerosis drug marketed by Biogen Idec Inc. and Elan Corp is having its label updated to include new data about the incidence of progressive multifocal leukoencephalopathy, or PML, a rare brain infection. According to a report … Continue reading

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