申请人:Vectura Limited
公开号:EP1829533A2
公开(公告)日:2007-09-05
A powder for use in a dry powder inhaler comprises: i) a fraction of fine particle size constituted by a mixture of physiologically acceptable excipient and an additive; ii) a fraction of coarse particles; and iii) at least one active ingredient. The powder is suitable for efficacious delivery of active ingredients into the low respiratory tract of patients suffering from pulmonary diseases such as asthma. In particular, the invention provides a formulation to be administered as dry powder for inhalation which is freely flowable, can be produced in a simple way, is physically and chemically stable and capable of delivering accurate doses and/or high fine particle fraction of low strength active ingredients by using a high- or medium resistance device.
一种用于干粉吸入器的粉末包括:i) 由生理上可接受的赋形剂和添加剂的混合物构成的细颗粒部分;ii) 粗颗粒部分;iii) 至少一种活性成分。这种粉末适用于向哮喘等肺部疾病患者的低呼吸道有效输送活性成分。特别是,本发明提供了一种可作为吸入用干粉给药的制剂,该制剂可自由流动,生产工艺简单,物理和化学性质稳定,能够通过使用高阻力或中等阻力装置输送精确剂量和/或高细颗粒部分的低强度活性成分。