目的评价黄杨宁缓释片的缓释效果。
Objective To evaluate the sustained release effect of Huangyangning Sustained-Released Tablets (HSRT).
结果：制备的黄杨宁渗透泵控释片体外释药速度较平稳。
Results:Preparation of Huangyangning osmotic pump controlled release tablets in vitro release rate of more stable.
结论黄杨宁缓释片有较好的缓释作用，释药以扩散为主。
Conclusion HSRT have a better release effect in the test condition and its release is in a way of diffusion mainly.
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