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药代动力学为药物代谢动力学的简称,是研究用药后体内药量(或血药浓度)随时间动态变化的规律的一门科学。体内药量每时每刻的变化是一个复杂的过程,是由机体对药物的吸收、分布、代谢、排泄等综合作用的结果所决定的。药代动力学就是把这种极为复杂的动态变化借助高等数学和电子计算机的手段推导出一些较为简单的公式,求出各种药物的药代动力学参数。有了这些公式和参数,便可预测出给药后任何时间的体内药量或血药浓度。
Pharmacokinetics for drug pharmacokinetic abbreviation, is the study of drug (or plasma concentration) with the law of dynamic changes over time a science. Every moment of the body dose changes is a complex process, is the body of the drug absorption, distribution, metabolism, excretion and other effects of the combined outcome of the decision. Pharmacokinetics is the very complex dynamic changes with the help of advanced mathematics and computer tools to derive some simple formula to find the pharmacokinetic parameters of various drugs. With these formulas and parameters, the in vivo dose or plasma concentration at any time after administration can be predicted.