Improvements in and relating to carrier particles for use in...

Details Improvements in and relating to carrier particles for use in... Improvements in and relating to carrier particles for use in...

A - Human Necessities

61

K

A61K 31/135 (2006.01) A61K 9/12 (2006.01) A61K 9/14 (2006.01) A61K 9/72 (2006.01) A61K 47/26 (2006.01)

Patent

CA 2174767

In a method of producing particles suitable for use as carrier particles in dry powder inhalers, particles (1) of a size suitable for use as carrier particles in dry powder inhalers are treated so as to dis- lodge small grains from the surface of the particles, without substantially changing the size of the particles during the treat- ment. The treatment gives improved effi- ciency of redispersion of active particles from the surfaces of carrier particles.

Selon un procédé de fabrication de particules conçues pour être utilisées en tant que particules porteuses dans des inhalateurs à poudre sèche à inhaler, on traite des particules (1) d'une taille appropriée destinées à être utilisées en tant que particules porteuses dans lesdits inhalateurs, de manière à déloger des petits grains de leur surface, sans pratiquement changer leur taille au cours du traitement. Par ce traitement, on obtient une meilleure efficacité de remise en suspension des particules actives depuis les surfaces des particules porteuses.

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