PHARMACEUTICAL COMPOSITION FOR PREVENTING OR TREATING DEMENTIA AND COGNITIVE DYSFUNCTION, CONTAINING DONEPEZIL OR PHARMACEUTICALLY ACCEPTABLE SALT THEREOF AND MEMANTINE OR PHARMACEUTICALLY ACCEPTABLE SALT THEREOF, AND PREPARATION METHOD THEREFOR
申请人:Bio Pharmartis Co., Ltd.
公开号:EP3520792A1
公开(公告)日:2019-08-07
An immediate-release type pharmaceutical composition for preventing or treating dementia and cognitive dysfunction, including donepezil or a pharmaceutically acceptable salt thereof and memantine or a pharmaceutically acceptable salt thereof, and a method of preparing the pharmaceutical composition are disclosed. The method includes: granulating donepezil or a pharmaceutically acceptable salt thereof by a wet process; and adding memantine or a pharmaceutically acceptable salt thereof to the granulated donepezil or a pharmaceutically acceptable salt thereof and directly compressing and homogenizing the resulting mixture, thereby addressing problems such as reduced efficacy due to a decrease in elution of a donepezil active ingredient upon co-administration of Aricept® (donepezil hydrochloride) and Ebixa® (memantine hydrochloride), which are commercially available, and content uniformity is secured by selecting an excipient having a particle size similar to that of particles of the active ingredients. In addition, the pharmaceutical composition of the present invention is very stable without related substances.
本发明公开了一种用于预防或治疗痴呆症和认知功能障碍的速释型药物组合物,包括多奈哌齐或其药学上可接受的盐和美金刚或其药学上可接受的盐,以及制备该药物组合物的方法。该方法包括通过湿法工艺将多奈哌齐或其药学上可接受的盐颗粒化;将美金刚或其药学上可接受的盐加入到制粒后的多奈哌齐或其药学上可接受的盐中,并直接压缩和均质化所得到的混合物,从而解决了诸如在同时服用 Aricept® (盐酸多奈哌齐)和 Ebixa®(盐酸美金刚)时,由于多奈哌齐活性成分洗脱减少而导致药效降低的问题,这两种药物均可在市场上买到,并且通过选择与活性成分颗粒大小相似的赋形剂可确保含量的一致性。此外,本发明的药物组合物在没有相关物质的情况下非常稳定。