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    • 9. 发明授权
    • Subsaturated nicotine transdermal therapeutic system
    • 亚饱和尼古丁透皮治疗系统
    • US5004610A
    • 1991-04-02
    • US537672
    • 1990-06-14
    • James L. OsborneMelinda NelsonDavid J. EnscoreSu I. YumRobert M. Gale
    • James L. OsborneMelinda NelsonDavid J. EnscoreSu I. YumRobert M. Gale
    • A61K9/70A61K31/465
    • A61K9/7084A61K31/465A61K9/7053A61K9/7069Y10S514/813
    • Rate controlled transdermal nicotine delivery systems are disclosed which utilize an in-line adhesive to maintain the systems on the skin. The initial equilibrated concentration of nicotine in the nicotine reservoir and the adhesive is below saturation, preferably at a thermodynamic activity no greater than 0.50, and the reservoir comprises the nicotine dissolved in a material with respect to which the rate controlling element of the device is substantially impermeable. In preferred embodiments the initial loading of nicotine in the reservoir is sufficient to prevent the activity of the nicotine in the reservoir from decreasing by more than about 75% and preferably no more than about 25% during the predetermined period of administration; and the thickness of the adhesive, rate controlling membrane and reservoir layers are selected so that at least 50% and, preferably at least 75% of the initial equilibrated nicotine loading is in the reservoir layer.
    • 公开了速率控制的透皮尼古丁递送系统,其利用直列粘合剂将系统保持在皮肤上。 尼古丁储存器和粘合剂中尼古丁的初始平衡浓度低于饱和度,优选在不大于0.50的热力学活性下,并且储存器包含溶解在该装置的速率控制元件基本相当于的材料中的尼古丁 不渗透 在优选的实施方案中,储存器中尼古丁的初始加载量足以防止储存器中的尼古丁的活性在给定的给药期间减少超过约75%,优选不超过约25%; 并且选择粘合剂,速率控制膜和储存层的厚度,使得初始平衡的尼古丁负载的至少50%,优选至少75%在储层中。