The anticoagulant warfarin, used to prevent blood clots and to reduce the risk of stroke or heart attack, should not be mixed herbal remedies before a health-care professional has been consulted.
Researchers have identified 38 herbs, including chamomile, ginko and licorice root, that have chemical properties that can either block or enhance warfarin's effects. In the latter case, there is an increased risk of bleeding.
In a review article published in the American Journal of Health System Pharmacy, Amy Heck,Ph.D. in pharmacy, and colleagues at Purdue University and Wishard Memorial Hospital in Indianapolis, Ind, wrote, "More food and drug interactions have been reported tof warfarin than for any other prescription medication."
Further study is needed to clarify just what the risk are. Meanwhile, doctors should find out all they can about what herbal remedies their patients are using.
Researchers have identified 38 herbs, including chamomile, ginko and licorice root, that have chemical properties that can either block or enhance warfarin's effects. In the latter case, there is an increased risk of bleeding.
In a review article published in the American Journal of Health System Pharmacy, Amy Heck,Ph.D. in pharmacy, and colleagues at Purdue University and Wishard Memorial Hospital in Indianapolis, Ind, wrote, "More food and drug interactions have been reported tof warfarin than for any other prescription medication."
Further study is needed to clarify just what the risk are. Meanwhile, doctors should find out all they can about what herbal remedies their patients are using.
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