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    • 10. 发明授权
    • Controlled drug delivery system for diltiazem
    • 地尔硫卓治疗药物输送系统
    • US6074669A
    • 2000-06-13
    • US984733
    • 1997-12-04
    • Vishnubhotla NagaprasadHimadri Sen
    • Vishnubhotla NagaprasadHimadri Sen
    • A61K9/20A61K9/26A61K9/52
    • A61K9/2054
    • A pharmaceutical composition in the form of a tablet or a capsule for the controlled release of diltiazem, comprises about 30 to about 97% by weight of a hydrophilic polymer, about 0.5 to about 30% by weight of an enteric (pH-dependent) polymer, and about 2.5 to about 60% by weight of diltiazem or a pharmaceutically acceptable salt or ester thereof. The ratio of hydrophilic polymer to enteric polymer is in the range of about 1:1 to about 15:1. Such a pharmaceutical composition releases diltiazem at a rate that allows effective plasma levels of diltiazem to be maintained over a period of twenty-four hours after administration to human adult subjects.
    • 片剂或胶囊形式的用于控制地尔硫卓的药物组合物包含约30至约97重量%的亲水性聚合物,约0.5至约30重量%的肠溶(pH依赖性)聚合物 ,和约2.5至约60重量%的地尔硫卓或其药学上可接受的盐或酯。 亲水性聚合物与肠溶性聚合物的比率在约1:1至约15:1的范围内。 这样的药物组合物以给予人成年受试者的二十四小时内维持有效血浆水平的地尔硫卓的速度释放地尔硫卓。