Methods: HPMC and stearic acid were used to prepare melatonin controlled-release bilayer tablets by application of solid dispersion method and double compression technology.
方法：以hpmc、硬脂酸为骨架材料，采用固体分散技术和双层压片工艺，制备褪黑素双层控释片。
Methods: HPMC and stearic acid were used to prepare melatonin controlled-release bilayer tablets by application of solid dispersion method and double compression technology.
方法：以hpmc、硬脂酸为骨架材料，采用固体分散技术和双层压片工艺，制备褪黑素双层控释片。
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