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    • 1. 发明申请
    • TABLET WITH CONTROLLED RELEASE OF ALFUZOSINE CHLORYDRATE
    • 控制释放ALFUZOSINE CHLORYDRATE的药片
    • WO1998008515A1
    • 1998-03-05
    • PCT/FR1997001515
    • 1997-08-22
    • SYNTHELABOJAGOTEC AGMAGGI, LaurettaCONTE, UbaldoGRENIER, PascalVERGNAULT, GuyDUFOUR, AlainJARREAU, François, XavierRAUCH-DESANTI, Clémence
    • SYNTHELABOJAGOTEC AG
    • A61K31/505
    • A61K9/2086A61K31/517
    • The invention concerns a pharmaceutical tablet for oral administration, for the controlled release of alfuzosine chlorhydrate at the proximal segments of the gastrointestinal tract, characterised in that it consists of: a) a first layer (1) capable of swelling noticeably and rapidly in contact with aqueous biological liquids, said layer being produced by a mixture or a granule containing hydrophilic polymers constituting 5.0 to 90 % and preferably 10 to 85 % of the layer weight; b) a second layer (2) adjacent to or superposed on the first layer, in which is carried the alfuzosine chlorhydrate, this layer being formed with hydrophilic polymers and other auxiliary substances, so as to give to the preparation suitable compressibility properties and to enable the release of the alfuzosine chlorhydrate in a predetermined lapse of time; c) and optionally a third layer (3) obtained by compression and applied on layer (2), generally consisting in particular of hydrophilic polymers which gel and/or swell and then can be optionally eroded and acting as a barrier modulating the release of the alfuzosine of layer (2), layer (3) being almost impermeable to the passage of the active substance. The invention is applicable to a pharmaceutical composition.
    • 本发明涉及一种用于口服给药的药物片剂,用于在胃肠道的近端节段控制释放盐酸阿夫福兹,其特征在于,其包括:a)能够明显和快速地溶胀的第一层(1),其与 水性生物液体,所述层由含有构成层重量的5.0〜90%,优选为10〜85%的亲水性聚合物的混合物或颗粒制成; b)邻近或重叠在第一层上的第二层(2),其中载有氢氟酸低聚水合物,该层由亲水性聚合物和其它辅助物质形成,以便制备合适的可压缩性,并使得 在预定的时间内释放氢氟酸阿福佐星; c)和任选的通过压缩获得并施加在层(2)上的第三层(3),其通常特别地由亲水性聚合物组成,所述亲水性聚合物凝胶化和/或膨胀,然后可以任选地被侵蚀并且用作调节释放 层(2)的阿夫福星,层(3)对于活性物质的通过几乎是不可渗透的。 本发明可应用于药物组合物。