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  • Title: [Study on in vitro dissolution rate of geniposide in huangqin qingfei dispersible tablet].
    Author: Cheng YJ, Zang C, Zhao XM, Feng QR.
    Journal: Zhongguo Zhong Yao Za Zhi; 2003 Aug; 28(8):721-3. PubMed ID: 15015350.
    Abstract:
    OBJECTIVE: To study in vitro dissolution rate of geniposide in Huangqin Qingfei dispersible tablet. METHOD: A reversed-phase HPLC method was developed for determination of geniposide. In vitro dissolution rates were compared between Huangqin Qingfei dispersible tablet and conventional tablet in the dissolution medium of pH 1.0, 2.85, 4.5, 6.8, and 8.0 accordingly. Zero-class model, single-index model, logarithm normal school model, and Weibull distributing model were used to simulate the dissolution curve. RESULT: The dissolution rate of two tablets is not affected by pH so much, and they can dissolve within 5 to 10 minutes. Weibull distributing model is the best simulation for in vitro dissolution. Comparing with conventional tablet, dispersible tablet dissolve quickly and completely. CONCLUSION: The in vitro dissolution rate of geniposide in Huangqin Qingfei dispersible tablet conforms to Weibull distributing model. The dispersible tablet is able to release rapidly.
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