In this article the research on oral sustained and controlled release preparations is surveyed.
本文综述了口服缓控释制剂研究概况。
Objective:To Prepared cetirizine hydrochloride sustained-release preparations in order to confirm its extension of drug efficacy.
目的：制备盐酸西替利嗪缓释制剂以验证其缓释制剂延长药效的作用。
Hydroxypropylmethylcellulose(HPMC), as hydrophilic gel matrix, is widely applied in the study of controlled release and sustained release preparations.
羟丙基甲基纤维素（HPMC）作为构成亲水凝胶骨架片的主要控释、缓释材料广泛用于药物的控释和缓释制剂的研究。
Conclusion: The equal distance release method is a simple, practical method, and is a better release method of sustained-release preparations in vitro.
结论：等距浸出法简单实用，是一种较好的长效制剂的体外释放新方法。
Preparations for the Expo are still underway. We will release relevant information in due course.
目前博览会筹备工作尚在进行中，我们将适时发布相关消息。
Methods: To study their release features of three different baicalin solid preparations by using the DDASS methods and the oar methods, respectively.
方法：分别采用连续动态的DDASS和桨法体外释放度实验，对黄芩苷三种不同固体制剂进行体外释放度研究。
OBJECTIVE To select the in vitro release medium for elevating the colon-specific effect of preparations prepared with konjac glucomannan.
目的筛选合适的释放介质，用于魔芋胶为载体结肠定位给药系统的体外评价。
Meanwhile, the application of montmorillonite as adjuvant in pharmaceutical synthesis and some preparations for the purpose of extended release are also briefed.
同时，还简要概述了蒙脱石原料药用于药物合成以及作为辅料用于缓释制剂。
Meanwhile, the application of montmorillonite as adjuvant in pharmaceutical synthesis and some preparations for the purpose of extended release are also briefed.
同时，还简要概述了蒙脱石原料药用于药物合成以及作为辅料用于缓释制剂。
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