http://news.yahoo.com/s/ap/20080318/...evZkkyPaGs0NUE
WASHINGTON - Drug maker Boehringer Ingelheim has told regulators that patients using its respiratory inhaler may face a greater risk of stroke.
The Food and Drug Administration said Tuesday that data submitted by the German drug maker show a slightly higher rate of stroke for patients using its Spiriva Handihaler, compared with a placebo. FDA said it has not yet analyzed the figures, which were compiled from 29 patient studies