The American journal of medicine
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Antibiotic medications are associated with an increased risk of bleeding among patients receiving warfarin. The recent availability of data from the Medicare Part D prescription drug program provides an opportunity to assess the association of antibiotic medications and the risk of bleeding in a national population of older adults receiving warfarin. ⋯ Among older continuous warfarin users, exposure to antibiotic agents-particularly azole antifungals-was associated with an increased risk of bleeding.