发明名称 PROCEDIMIENTO PARA LA PREPARACION DE FORMAS DE ADMINISTRACION DE MEDICAMENTOS SOLIDAS Y DURADERAS A BASE DE HIDROXIPROPILCELULOSA.
摘要 <p>Solid, stable dosage forms consisting of a moisture- and temperature-sensitive core prepared from a medicament, or a mixture of medicaments, and excipients, and an elastic film coating which decomposes in aqueous solution, said elastic film coating substantially comprising (a) a water-soluble component consisting of 20-60% of hydroxypropyl cellulose having an average molecular weight of 75,000, and (b) a water-insoluble component consisting of 5-20% of an acrylic resin in the form of (b1) a 70:30 ethyl acrylate/methyl methacrylate copolymer having a molecular weight of 80,000, or (b2) a 30:70 to 70:30 methyl acrylate/methyl methacrylate copolymer having an average molecular weight of 500,000, 20-60% of a lubricant, 0.5-5% of a wetting agent, 0-5% of a plasticizer, and optional additional excipients, and process for the preparation thereof.</p>
申请公布号 ES556452(D0) 申请公布日期 1988.04.01
申请号 ES19520005564 申请日期 1986.06.23
申请人 CIBA-GEIGY AG. 发明人
分类号 A61K9/28;A61K9/30;A61K9/32;A61K9/36;A61K47/00;A61K47/30;A61K47/32;A61K47/36;A61K47/38;(IPC1-7):A61K9/30;A61K31/715 主分类号 A61K9/28
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