A Rare Instance Chamomile Can Be Deadly

You may recall a warning I posted last year about the way black cohosh interacts badly with conventional drugs used to treat breast cancer. The same may be true for patients who use products containing chamomile, according to a report in the Canadian Medical Association Journal (free text link below).

Montreal researchers encountered a serious case of internal hemorrhaging in a patient who used a chamomile lotion and drank chamomile tea while taking the blood-thinning drug Warfarin for a heart condition.

Because Warfarin is a derivative of coumarin, a compound found in many plants including chamomile, scientists believe chamomile reacted synergistically with the drug to speed up the bleeding. Unfortunately, this isn't the first time I've warned you about Warfarin, as it also reacts badly with gingko biloba to cause severe bleeding too.

Canadian Medical Association Journal, Vol. 174, No. 9, April 25, 2006 Free Full Text Article

EurekAlert April 27, 2006

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