药代动力学研究是研究药物在生物体内的吸收、分布、代谢和排泄等过程的科学。通过测量药物在体内的浓度随时间的变化，揭示药物的生物利用度、半衰期、清除率等参数。这些信息有助于优化药物剂量、制定用药方案，预测药物在不同个体中的效应和副作用。药代动力学研究在药物开发、个体化治疗和药物安全性评估中具有重要作用。

Pharmacokinetics research is the science of studying the absorption, distribution, metabolism and excretion of drugs in the body. By measuring the change of drug concentration in the body over time, the bioavailability, half-life, clearance rate and other parameters of the drug are revealed. This information helps optimize drug dosage, develop medication regimens, and predict drug effects and side effects in different individuals. Pharmacokinetic studies play an important role in drug development, personalized treatment, and drug safety assessment.