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    • 5. 发明公开
    • 레보드로프로피진 함유 서방정 및 이의 제조방법
    • 含有LEVODROPROPIZINE及其制造方法的可持续发行片
    • KR1020130117128A
    • 2013-10-25
    • KR1020120039907
    • 2012-04-17
    • 한국유나이티드제약 주식회사
    • 최연웅조상민민병구김보경장재상강현주
    • A61K9/22A61K9/20A61K47/30A61K31/495
    • A61K9/209A61K9/2866A61K31/495
    • PURPOSE: A sustained release tablet containing levodropropizine is provided to show immediate antitussive and apophlegmatic effects through oral administration, to maintain a drug in plasma in a constant concentration, and to reduce administration frequency. CONSTITUTION: A sustained release tablet containing levodropropizine comprises: an immediate release layer containing levodropropizine; and a sustained release layer containing levodropropizine and release-controlling polymers. The content of levodropropizine in the immediate release layer and the sustained release layer is 10-70 mg and 20-80 mg, respectively. A method for manufacturing the sustained release tablet comprises the steps of: mixing levodropropizine, the release-controlling polymers, and additives and preparing the sustained release granules by a wetting or drying method; adding a lubricant to a mixture of the sustained release granules and levodropropizine and tableting the final mixture. [Reference numerals] (AA) Control medicine-test medicine comparison elution (%); (BB) Elution rate (%); (CC) Control medicine; (DD) Time (min)
    • 目的:提供含有左旋丙酸的持续释放片剂,以通过口服给药立即产生镇咳和止咳作用,维持血浆中恒定浓度的药物,并降低给药频率。 构成:含有左旋丙酸的缓释片包括:含有左旋丙嗪的立即释放层; 和含有左旋丙酸和释放控制聚合物的持续释放层。 缓释层和缓释层中左旋异丙嗪的含量分别为10-70mg和20-80mg。 制备缓释片剂的方法包括以下步骤:将左旋丙嗪,释放控制聚合物和添加剂混合并通过润湿或干燥方法制备缓释颗粒; 向持续释放颗粒和左旋丙嗪的混合物中加入润滑剂并将最终混合物压片。 (参考号)(AA)对照药物试验药物比较洗脱(%); (BB)洗脱率(%); (CC)控制药; (DD)时间(分钟)