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Pfizer Inc. (PFE), Boehringer Ingelheim Corporation's Spiriva May Raise Risk of Stroke Says US FDA  
3/19/2008 7:22:09 AM

WASHINGTON (Reuters) - The lung drug Spiriva, marketed by Pfizer Inc and Boehringer Ingelheim Pharmaceutical Inc, may increase the risk of stroke, the U.S. Food and Drug Administration said on Tuesday.
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