Introduction 2. Drug metabolism and effect: 失活( pharmacological deactivation或降低 活化( pharmacological actiⅳ vation)或增强 产生毒性代谢物( toxication)或作用改变2.Drug metabolism and effect： 失活(pharmacological deactivation)或降低 活化(pharmacological activation)或增强 产生毒性代谢物(toxication)或作用改变 ▪ Introduction