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DAI You-qin, MAO Rong-rong. Comparison of dissolution of felodipine tablets of four pharmaceutical factories[J]. Journal of Pharmaceutical Practice and Service, 2009, 27(3): 195-197,204.
Citation: DAI You-qin, MAO Rong-rong. Comparison of dissolution of felodipine tablets of four pharmaceutical factories[J]. Journal of Pharmaceutical Practice and Service, 2009, 27(3): 195-197,204.

Comparison of dissolution of felodipine tablets of four pharmaceutical factories

  • Received Date: 2009-03-19
  • Objective :To compare the dissolution in vitro of felodipine tablets of four pharmaceutical factories so as to make a reference to clinical application of felodipine tablets. Methods :The dissolubility of felodipine tablets of four pharmaceutical factories was inspected in the following 5 mediums:water,pH 1.2 artificial gastric juice,pH 4.0 acetate buffer solution,pH 6.8 phosphate buffer solution(the above 4 mediums were used according to the project of drug quality's re-evaluation in Japan)and the mediums that used in ChP 2005.The dissolution tests were proceeded using paddle method at 50 r/min. Results :The cumulative dissolution of all felodipine tablets in 30 min was over 80% when the mediums regulated in ChP 2005 was used.However,when the mediums that regulated in the project of drug quality's re-evaluation in Japan were used,only the products of one manufacture could dissolved over 90% in 6h. Conclusion :The dissolution of the same batch of felodipine tablets in different mediums verifies obviously.There are significant difference among the quality of the felodipine tablets of different pharmaceutical factories,which should be given attention to in clinical application.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Comparison of dissolution of felodipine tablets of four pharmaceutical factories

Abstract: Objective :To compare the dissolution in vitro of felodipine tablets of four pharmaceutical factories so as to make a reference to clinical application of felodipine tablets. Methods :The dissolubility of felodipine tablets of four pharmaceutical factories was inspected in the following 5 mediums:water,pH 1.2 artificial gastric juice,pH 4.0 acetate buffer solution,pH 6.8 phosphate buffer solution(the above 4 mediums were used according to the project of drug quality's re-evaluation in Japan)and the mediums that used in ChP 2005.The dissolution tests were proceeded using paddle method at 50 r/min. Results :The cumulative dissolution of all felodipine tablets in 30 min was over 80% when the mediums regulated in ChP 2005 was used.However,when the mediums that regulated in the project of drug quality's re-evaluation in Japan were used,only the products of one manufacture could dissolved over 90% in 6h. Conclusion :The dissolution of the same batch of felodipine tablets in different mediums verifies obviously.There are significant difference among the quality of the felodipine tablets of different pharmaceutical factories,which should be given attention to in clinical application.

DAI You-qin, MAO Rong-rong. Comparison of dissolution of felodipine tablets of four pharmaceutical factories[J]. Journal of Pharmaceutical Practice and Service, 2009, 27(3): 195-197,204.
Citation: DAI You-qin, MAO Rong-rong. Comparison of dissolution of felodipine tablets of four pharmaceutical factories[J]. Journal of Pharmaceutical Practice and Service, 2009, 27(3): 195-197,204.

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