Dual control sustained release drug delivery systems and methods for
preparing same
    52.
    发明授权
    Dual control sustained release drug delivery systems and methods for preparing same 失效
    双重控制缓释药物递送系统及其制备方法

    公开(公告)号:US5656296A

    公开(公告)日:1997-08-12

    申请号:US476490

    申请日:1995-06-07

    摘要: The present invention pertains to a dual control sustained release drug delivery system which comprises a core and a porous coating layer over the core, wherein the coated core comprises (A) a core comprising in percentages by weight of the core composition (a) a medicament present in an amount from about 60% to about 90%; (b) an edible material having a melting point from about 25.degree. C. to about 100.degree. C. selected from the group consisting of (i) fatty acids having an iodine value from about 1 to about 10, (ii) natural waxes, (iii) synthetic waxes, and (iv) mixtures thereof, present in an amount from about 5% to about 40%; and (B) a porous coating layer over the core comprising in percentages by weight of the coating layer composition (a) a pH-independent water-insoluble polymer present in an amount from about 40% to about 80%; and (b) a water-soluble film forming polymer present in an amount from about 20% to about 60%.

    摘要翻译: 本发明涉及一种双重控制缓释药物递送系统,其包含核心上的核心和多孔涂层,其中涂覆的核心包含(A)核心组合物(a)的重量百分比的核心,药物 以约60%至约90%的量存在; (b)熔点约25℃至约100℃的可食用材料,其选自(i)碘值约1至约10的脂肪酸,(ii)天然蜡, (iii)合成蜡,和(iv)其混合物,其量为约5%至约40%; 和(B)核心上的多孔涂层,其包含重量百分比的涂层组合物(a),其以约40%至约80%的量存在; pH非依赖性水不溶性聚合物; 和(b)以约20%至约60%的量存在的水溶性成膜聚合物。

    Stabilization of enteric coated dosage form
    55.
    发明授权
    Stabilization of enteric coated dosage form 失效
    肠溶包衣剂形式的稳定化

    公开(公告)号:US5068110A

    公开(公告)日:1991-11-26

    申请号:US379727

    申请日:1989-07-14

    IPC分类号: A61K9/48

    CPC分类号: A61K9/4891

    摘要: The present invention is a stabilized enteric-coated pharmaceutical dosage form and processes for the preparation thereof. Dissolution stability after storage of the dosage form under high stress conditions is improved by an enteric-coated dosage form having an enteric coating wherein the coating is of the acrylic resin kind of from 14 mg/cm.sup.2 to 24 mg/cm.sup.2 or an enteric coating wherein the coating is of the acetate kind of from 14 mg/cm.sup.2 to 24 mg/cm.sup.2 and having a second coating of hydrophilic coating for example, hydroxypropyl cellulose, hydroxymethyl cellulose or hydroxypropylmethyl cellulose.

    摘要翻译: 本发明是一种稳定的肠溶包衣药物剂型及其制备方法。 通过具有肠溶衣的肠溶衣剂形式,其中所述涂层为14mg / cm 2至24mg / cm 2的丙烯酸树脂类型或肠溶衣,其中在高应激条件下储存剂型之后的溶解稳定性得到改善,其中 该涂层的醋酸盐类型为14mg / cm 2至24mg / cm 2,并且具有亲水涂层的第二涂层,例如羟丙基纤维素,羟甲基纤维素或羟丙基甲基纤维素。

    Transdermal matrix system
    58.
    发明授权
    Transdermal matrix system 失效
    透皮基质系统

    公开(公告)号:US4789547A

    公开(公告)日:1988-12-06

    申请号:US063204

    申请日:1987-06-17

    摘要: A composition for the transmembranal, including transdermal, administration of a pharmaceutical preparation comprising cross-linked carboxymethylcellulose, an alcohol soluble poly (2-hydroxyethyl) methacrylate), a permeation enhancer, such as a mixture of linoleic acid and propylene glycol, and a biologically active material, as well as a device for administering the aforementioned composition to mammals, and also a method for administering transdermally to a mammal an effective amount of the aforementioned composition.

    摘要翻译: 用于跨膜的组合物,包括经皮,施用包含交联的羧甲基纤维素,醇可溶性聚(2-羟乙基)甲基丙烯酸酯)的药物制剂,渗透促进剂,例如亚油酸和丙二醇的混合物,以及生物学 活性物质,以及用于向哺乳动物施用前述组合物的装置,以及向哺乳动物经皮施用有效量的上述组合物的方法。