同样剂量的某一药物在不同的病人中不一定都能达到相等的血药浓度,相等的血药浓度也不一定都能达到等同的药效,差异可能很大,甚至可能出现质的差异,即一般病人不会出现的异常危害性反应。这种因人而异的药物反应人们习惯上称之为个体差异。产生个体差异的原因可以存在于药物产 The same dose of a drug in different patients may not be able to achieve equal plasma concentration, the equivalent plasma concentration may not be able to achieve the same efficacy, the difference may be large, and even qualitative differences may occur, That is, the average patient does not appear abnormal hazardous reactions. People-specific reactions to these drugs have traditionally been called individual differences. The causes of individual differences can exist in the drug production