9/30/2008

People treated regularly with warfarin, a blood-thinning drug, had twice as much bleeding when they experienced a stroke compared with those who did not take the medicine, according to a U.S. study. Using brain scans, scientists found that warfarin can cause blood to become too thin, raising the risk of death from brain hemorrhage. The finding shows "the importance of good monitoring and adjustment of warfarin dose," one of the researchers said.

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