Contraceptive vaginal tablets
    6.
    发明授权
    Contraceptive vaginal tablets 失效
    避孕阴道片

    公开(公告)号:US4565694A

    公开(公告)日:1986-01-21

    申请号:US621905

    申请日:1984-06-07

    CPC分类号: A61K9/0034 Y10S514/843

    摘要: The invention relates to contraceptive vaginal tablets as well as to a process for preparing them. The tablets of the invention have the following composition:0.2 to 3 parts by weight of boric acid,10 to 20 parts by weight of tartaric acid,1 to 2 parts by weight of vitamin K.sub.3 -sodium bisulfite adduct,0.8 to 1.2 parts by weight of polyvinyl pyrrolidone,2 to 5 parts by weight of magnesium stearate,8 to 12 parts by weight of carboxymethyl cellulose,8 to 12 parts by weight of lactose and50 to 65 parts by weight of microcrystalline cellulose.The vaginal tablets contain preferably 5 to 10 mg of vitamin K.sub.3 -sodium bisulfite adduct and have a total weight of 500 mg.The tablets of the invention are prepared preferably in such way that the boric acid, the tartaric acid and the vitamin K.sub.3 -sodium bisulfite adduct, as well as the polyvinyl pyrrolidone, the magnesium stearate, the carboxymethyl cellulose, the lactose and the microcrystalline cellulose are homogenized separately to powder mixtures thereafter the powder mixtures are mixed and pressed to tablets.The tablets should be wetted and put into the back-vaginal fornix 10 minutes before the coitus.

    摘要翻译: PCT No.PCT / HU83 / 00052 Sec。 371日期1984年6月7日 102(e)日期1984年6月7日PCT提交1983年10月7日PCT公布。 公开号WO84 / 01502 日期1984年4月26日。本发明涉及避孕阴道片及其制备方法。 本发明的片剂具有以下组成:0.2〜3重量份的硼酸,10〜20重量份的酒石酸,1〜2重量份的维生素K 3 - 亚硫酸氢钠加合物,0.8〜1.2重量份 的聚乙烯吡咯烷酮,2〜5重量份的硬脂酸镁,8〜12重量份的羧甲基纤维素,8〜12重量份的乳糖和50〜65重量份的微晶纤维素。 阴道片剂优选含有5〜10mg维生素K 3 - 亚硫酸氢钠加合物,总重量为500mg。 本发明的片剂优选以硼酸,酒石酸和维生素K 3 - 亚硫酸氢钠加合物以及聚乙烯吡咯烷酮,硬脂酸镁,羧甲基纤维素,乳糖和微晶纤维素等的方式制备 与粉末混合物分别均化,然后将粉末混合物混合并压制成片剂。 应将片剂浸湿,并在肛门前10分钟放入背阴道穹窿。