Objective To investigate the difference between domestic and imported HPMC as sustained-release matrix material.

目的考察国产与进口羟丙甲纤维素(HPMC)作为缓释骨架材料的差异。

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OBJECTIVE Breviscapine sustained-release tablets(BST)were formulated with hydroxypropyl-methylcellulose as the matrix material and the release mechanism of the tablets was studied.

目的以羟丙甲基纤维素为骨架材料制得灯盏花素缓释片，并对释药机制进行探讨。

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P. Conclusions Chitosan tripolyphosphate sodium could be used as a complex matrix material for sustained release pellets loading DS.

结论甲壳胺三聚磷酸钠可以作为双氯灭痛缓释微丸的骨架材料。

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