NDLI: An integral evaluation method for synchronous drug release based on a mathematics set in guiding the preparation of multi-component traditional Chinese medicine

Content Provider	Royal Society of Chemistry (RSC)
Author	Feng, Yi Zhai, Yu Xu, Lieming Shen, Lan Ruan, Kefeng Ma, Shiyu Lin, Xiao
Copyright Year	2014
Abstract	The quantitative characterization and evaluation of the synchrony of multi-component release behavior are bottlenecks which urgently need to be solved in the study of multi-component release kinetics and the quality control of multi-component traditional Chinese medicine (MCTCM). MCTCM is made using original prescriptions and preparations. At present, MCTCM is generally evaluated using pharmacodynamics evaluation. However, this method lacks convenience and cannot clearly reveal the correlation between the whole dynamic process of drug release and in vivo absorption. It is also very limited by the preparation of MCTCM. In addition, there are various types of effective ingredients in MCTCM, which show distinctly different physicochemical properties. These differences may lead to the asynchrony of drug release between MCTCM and the original preparation, which thereby directly affects the efficacy. However, we can't find the core reason for this issue through the use of pharmacodynamics evaluation. The papers reported previously were confined to studying the release characteristics of one or a few components in MCTCM and the drug release evaluation method reported was too macroscopic to specifically identify the components which caused the integral asynchrony. In this paper, in order to reveal the MCTCM release synchronous characteristics, Fuzhenghuayu capsules were selected as the model, an original preparation used, and the integral release evaluation method based on a mathematics set was established in guiding the preparation of MCTCM. This method can not only be used in evaluating the release characteristics of MCTCM by the parameter of the asynchronous coefficient, but can also be used in adjusting the dose of the release unit by the relative error parameter. The results demonstrated that this evaluation method was feasible, stable and reproducible. Also the Fuzhenghuayu pellets guided by this method showed release synchrony and similar pharmacodynamics with the original capsules, and the drug release mechanism was mainly frame erosion. Through this study, we could then evaluate the quantifiable release characteristics of MCTCM and apply an integral synchronous evaluation method for MCTCM.
Starting Page	2260
Ending Page	2269
Page Count	10
File Format	HTM / HTML PDF
ISSN	17599660
Volume Number	6
Issue Number	7
Journal	Analytical Methods
DOI	10.1039/c3ay41850b
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Pharmacodynamics MCTCM Flame cutting (firearms) Traditional Chinese medicine Integral Approximation error Mathematics
Content Type	Text
Resource Type	Article
Subject	Analytical Chemistry Engineering Chemical Engineering

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