Paracetamol/warfarin interaction
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Loss of INR control in an elderly patient: case report A 66-year-old woman, who had a history of hypertension, diabetes mellitus and atrial fibrillation, was receiving warfarin [route and dosage not stated] for the prevention of systemic embolism. Over the past few months, her INR control became erratic. She required a lower warfarin dose to maintain an INR of 2.0 to 3.0. Over the same period, she was receiving paracetamol at a dosage up to 650mg four time daily for back pain [route, time to reaction onset and patient outcome not stated]. Lopes RD, et al. Warfarin and acetaminophen interaction: a summary of the evidence and biologic plausibility. Blood 118: 6269-73, No. 24, 8 Dec 2011 803069248 USA
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Reactions 14 Apr 2012 No. 1397
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