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E de Teresa A Vera J Ortigosa L A Pulpon A P Arus M de Artaza 《BMJ (Clinical research ed.)》1979,2(6200):1260-1261
To assess the effects of oral contraceptives on anticoagulant treatment the prothrombin times of 12 patients were measured while they were taking both drugs simultaneously and while they were taking only anticoagulants. The mean prothrombin time ratio was significantly higher when patients were taking both drugs than when they were taking only anticoagulants and their doses of anticoagulant were significantly lower. During both periods most of the prothrombin values remained in the therapeutic range. These findings suggest that, contrary to the common belief that oral contraceptives diminish the effects of anticoagulants, contraceptives in fact potentiate the action of the anticoagulants. 相似文献
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A D Malcolm 《BMJ (Clinical research ed.)》1971,4(5785):491-492
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