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一、什么是药物半衰期?有何临床意义? 答:药物半衰期(又名药物半寿期)包括血浆半衰期和生物半衰期。前者指吸收与消除达平衡状态后,血浆中药物浓度消失一半所需的时间;后者指药物效应下降一半所需要的时间。如泼尼松的血浆半衰期为3h,而生物半衰期为18～36h。但大多数药物
First, what is the half-life of the drug? What is the clinical significance? A: The half-life of the drug (also known as drug half-life), including plasma half-life and biological half-life. The former refers to the absorption and elimination of up to equilibrium, the plasma concentration of drugs disappeared by half the time required; the latter refers to the drug effect half the time required. Such as prednisone plasma half-life of 3h, while the biological half-life of 18 ~ 36h. But most drugs