共查询到20条相似文献,搜索用时 31 毫秒
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E A Letsky 《BMJ (Clinical research ed.)》1990,300(6728):862-866
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Drug interactions are important causes of both unexpected toxic and therapeutic effects. Adverse reactions due to drug interaction are proportional to the number of drugs given and the duration of administration. Although drug interactions may be beneficial, they are most often recognized when they increase mortality or morbidity. The frequency of adverse drug interactions in clinical practice makes it mandatory for physicians to know the drugs and mechanisms involved.A drug may potentiate or antagonize the effects of another drug by direct chemical or physical combination, by altering gastrointestinal absorption, by influencing metabolism, transport, or renal clearance, by changing the activity of a drug at its receptor site, or by modifying the patient''s response to the drug by a variety of means.This article stresses the importance of avoiding multible drug therapy. When such treatment is unavoidable, patients must be carefully observed for evidence of intensified or diminished drug effect. Only this permits the detection and prevention of untoward drug interactions. 相似文献
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D B McClelland 《BMJ (Clinical research ed.)》1990,300(6716):35-37
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W Odling-Smee 《BMJ (Clinical research ed.)》1990,300(6724):599-601