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公开(公告)号:US20130072676A1
公开(公告)日:2013-03-21
申请号:US13544945
申请日:2012-07-09
IPC分类号: C07D498/18
CPC分类号: C07D491/22 , A61K9/1617 , A61K9/1623 , A61K9/1652 , A61K9/2013 , A61K9/2054 , A61K9/2081 , A61K9/28 , A61K9/501 , A61K9/5015 , A61K9/5026 , A61K31/437 , A61K47/10 , A61K47/26 , C07B2200/13
摘要: Polyols stabilize polymorphous form of rifaximin, in particular the β form. When polyols having at least two hydroxy groups are added to rifaximin powder, polymorph β is stable and remains stable in time independently from the environment humidity.In this invention a method to prepare formulations constituted by pure and stable polymorphous forms able to give a pharmaceutical product is described.
摘要翻译: 多元醇稳定多形态的多形态,特别是“ 形成。 当将具有至少两个羟基的多元醇加入到利福昔明粉中时, 稳定,独立于环境湿度保持稳定。 在本发明中,描述了制备能够产生药物产品的纯的和稳定的多形态形式构成的制剂的方法。