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中国临床药理学与治疗学 ›› 2003, Vol. 8 ›› Issue (4): 405-407.

• 研究原著 • 上一篇    下一篇

由静脉恒速滴注血药浓度计算双室模型药物动力学参数的微分法

张继稳, 郭辉霞1   

  1. 安徽省新药研究院,合肥 230601,安徽;
    1皖南医学院附二院药剂科,芜湖 241000,安徽
  • 收稿日期:2003-02-24 修回日期:2003-04-08 出版日期:2003-08-26 发布日期:2020-11-19
  • 通讯作者: 张继稳,男,药学博士,研究方向:缓释控释制剂药物动力学。Tel:0551-3812848  E-mail:CSR-PK@263.net

Differential method for calculatingParameters of bi-compartmentalPharmacokinetics based onPlasmalevels of intravenous infusion

ZHANG Ji-Wen, GUO Hui-Xia1   

  1. Anhui New Drug Institute,Hefei 230601,Anhui,China;
    1Pharmacy Department,Secondary Affiliated Hospital,Wannan Medical College,Wuhu 241000,Anhui,China
  • Received:2003-02-24 Revised:2003-04-08 Online:2003-08-26 Published:2020-11-19

摘要: 目的 建立一种根据血药浓度的微分特征计算静脉滴注双室模型药物动力学参数的新方法。方法 通过微分方法分析双室模型药物静脉滴注给药的血药浓度达到稳态前的药物动力学特征,求出药物的中央室分布容积、双室模型药物在隔室间的转运速率常数,并据此计算快速配置速度常数和慢速配置速度常数等参数。结果 得到了双室模型药物的中央室分布容积V1,双室间的转运速率常数k12、k21、k10,快速配置速度常数α和慢速配置速度常数β等主要药物动力学参数的计算方法。模拟计算结果表明,本法具有良好的准确性。结论 以恒速静脉滴注血药浓度的微分法计算双室模型药物的药动学参数,具有快速、样本少、血药浓度无须达稳态的优点。

关键词: 药理学, 微分法, 双室模型, 药物动力学, 静脉滴注

Abstract: AIM: To establish a new method for calculating thePharmacokineticParameters of bi-compartmental drugs based on thePlasmalevel of the drug during the intravenous infusionPhase.METHODS: The novel method was based on the analysis of differential kinetics of thePlasmalevel before thePlasmalevel reaches the steady-state concentration of the bi-compartmental drug,which was administered by a constant rate of intravenous infusion.RESULTS: The new method could obtain the volume of the central andPeripheral compartments,as well as the kineticParameters between the two compartments of the drug in a simplified manner.The results of the simulation with a model drug administered by intravenous infusion indicatedPreferable methodological accuracy.CONCLUSIONS: A new method is characteristic of simplicity andPredictability forProcessing thePharmacokineticParameters of the bi-compartment drugs based on thePlasmalevels before the steady-state administered by intravenous infusion.

Key words: pharmacology, differential mathod, pharmacokinetics, bi-compartment, intravenous infusion

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