CN104288157B — 包含丙酸氯倍他索和维a酸的固体分散体及其制备方法
Assigned to Jiangsu Zhiyuan Pharmaceutical Co.,Ltd. · Expires 2018-04-13 · 8y expired
What this patent protects
本发明提供一种复方丙酸氯倍他索和维A酸固体分散体,主要利用脂质材料,制备成丙酸氯倍他索和维A酸的固体分散体,药物以分子形式分散于固体分散体中,应用前加热融熔,形成均一药物溶液,药物在溶液各部位含量均匀。添加适当的药剂学可接受的辅料,制备成软膏剂。固体分散体可以均匀分散于软膏基质中,在高温60℃条件下,也不会出现分层现象,始终保持整体体系的药物含量均匀。通过皮肤滞留试验表明,固体分散体乳膏的药物皮肤滞留量明显高于普通软膏剂,有利于提高制剂药效,降低毒副作用。
USPTO Abstract
本发明提供一种复方丙酸氯倍他索和维A酸固体分散体,主要利用脂质材料,制备成丙酸氯倍他索和维A酸的固体分散体,药物以分子形式分散于固体分散体中,应用前加热融熔,形成均一药物溶液,药物在溶液各部位含量均匀。添加适当的药剂学可接受的辅料,制备成软膏剂。固体分散体可以均匀分散于软膏基质中,在高温60℃条件下,也不会出现分层现象,始终保持整体体系的药物含量均匀。通过皮肤滞留试验表明,固体分散体乳膏的药物皮肤滞留量明显高于普通软膏剂,有利于提高制剂药效,降低毒副作用。
Drugs covered by this patent
Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.
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