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    • 6. 发明申请
    • OSMOTIC DOSAGE FORM WITH CONTROLLED RELEASE AND FAST RELEASE ASPECTS
    • OSMOTIC剂型与控制释放和快速释放方面
    • US20070166381A1
    • 2007-07-19
    • US11619468
    • 2007-01-03
    • Iran ReyesJulie LeeBrian BarclayIswadi LiejantoNipun Davar
    • Iran ReyesJulie LeeBrian BarclayIswadi LiejantoNipun Davar
    • A61K9/24
    • A61K9/0004A61K31/506
    • Disclosed are osmotic dosage forms and methods that provide for fast release of drugs together with controlled release of drugs. In an aspect, disclosed are osmotic dosage forms including: a semi-permeable membrane; a lubricating subcoat located within the semi-permeable membrane; an orifice in the semi-permeable membrane located at an end of the semi-permeable membrane; a drug layer located adjacent to the orifice and within the lubricating subcoat; a push layer located within the lubricating subcoat and on a side of the drug layer opposite from the orifice; wherein an area of the orifice is greater than or equal to about 1,600 mil2; and wherein the drug layer comprises from about 20 wt % to about 90 wt % microcrystalline cellulose, and less than or equal to about 10 wt % of a drug, based on the total weight of the drug layer. Also disclosed are methods of making osmotic dosage forms.
    • 公开了提供药物快速释放以及药物控制释放的渗透剂型和方法。 一方面,所公开的是渗透剂型,包括:半透膜; 位于半透膜内的润滑底涂层; 位于半透膜端部的半透膜中的孔口; 邻近孔口并位于润滑底涂层内的药物层; 位于所述润滑底层内并且在所述药物层的与所述孔相对的一侧的推层; 其中所述孔口的面积大于或等于约1,600密耳2; 并且其中基于药物层的总重量,药物层包含约20重量%至约90重量%的微晶纤维素和小于或等于约10重量%的药物。 还公开了制备渗透剂型的方法。