A patient has been taking warfarin (Coumadin) for recurrent…
A patient has been taking warfarin (Coumadin) for recurrent deep vein thrombosis for more than a year. She presents today with increased bruising and bleeding gums when she brushes her teeth. On further questioning she indicates that she has been taking Tagamet HB (cimetidine) an over-the-counter medication for heartburn. Which of the following is the most likely reason for her symptoms?
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