Prolonged release active agent dosage form adapted for gastric retention
    7.
    发明授权
    Prolonged release active agent dosage form adapted for gastric retention 失效
    延长释放活性剂剂型适合胃潴留

    公开(公告)号:US06548083B1

    公开(公告)日:2003-04-15

    申请号:US09615110

    申请日:2000-07-13

    IPC分类号: A61K922

    CPC分类号: A61K9/0065 A61K9/2072

    摘要: The present invention is directed to an active agent dosage form which is adapted for retention in the stomach and useful for the prolonged delivery of an active agent formulation to a fluid environment of use. The active agent dosage form is a polymer matrix that swells upon contact with the fluids of the stomach. A portion of the polymer matrix is surrounded by a band of insoluble material that prevents the covered portion of the polymer matrix from swelling and provides a segment of the dosage form that is of sufficient rigidity to withstand the contractions of the stomach and delay expulsion of the dosage form from the stomach until substantially all of the active agent has been dispensed.

    摘要翻译: 本发明涉及一种活性剂剂型,其适于保留在胃中并且可用于将活性剂制剂延长递送至使用的流体环境。 活性剂剂型是与胃液接触时膨胀的聚合物基质。 聚合物基质的一部分由不溶性材料带包围,其阻止聚合物基质的被覆盖部分膨胀,并提供具有足够刚性以抵抗胃收缩和延迟排出的部分的剂型 剂型,直到基本上所有的活性剂已被分配。

    Gastric retention dosage form having multiple layers
    10.
    发明申请
    Gastric retention dosage form having multiple layers 审中-公开
    具有多层的胃滞留剂型

    公开(公告)号:US20050019409A1

    公开(公告)日:2005-01-27

    申请号:US10914486

    申请日:2004-08-09

    摘要: The present invention is directed to a multilayered dosage form which is adapted for retention in the stomach and useful for the prolonged delivery of an active agent to a fluid environment of use. The active agent dosage form is a multilayer core, often bilayer, formed of polymer matrices that swell upon contact with the fluids of the stomach. At least one layer of the multilayered dosage form includes an active agent. A portion of the polymer matrices are surrounded by a band of insoluble material that prevents the covered portion of the polymer matrices from swelling and provides a segment of the dosage form that is of sufficient rigidity to withstand the contractions of the stomach and delay expulsion of the dosage form from the stomach until substantially all of the active agent has been dispensed.

    摘要翻译: 本发明涉及一种多层剂型,其适于保留在胃中并且可用于将活性剂延长递送至使用的流体环境。 活性剂剂型是由与胃液接触时膨胀的聚合物基质形成的多层芯,通常是双层的。 至少一层多层剂型包括活性剂。 聚合物基质的一部分被不溶性材料带包围,其阻止聚合物基质的被覆盖部分膨胀,并且提供具有足够刚度以抵抗胃收缩和延迟排出 剂型,直到基本上所有的活性剂已被分配。