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Pharmaceutical formulations for dry powder inhalers in the form of hard agglomerates
专利权人:
CHIESI FARMACEUTICI SPA
发明人:
BRAMBILLA GAETANO,MUSA ROSSELLA,FERRARINI LORENZO,STANIFORTH JOHN NICHOLAS,MORTON DAVID ALEXANDER VODDEN,GILL RAJBIR
申请号:
NO20024980
公开号:
NO332025B1
申请日:
2002.10.16
申请国别(地区):
NO
年份:
2012
代理人:
摘要:
Refers to a Formulation for dry powder Inhaler comprising: a) a fraction of Fine particle size formed by a mixture of Magnesium Stearate with an average size less35 um; (b) a fraction of coarse particles in A physiologically acceptable vehicle with a particle size of less than 100 UM.The mixture is composed of 90% to 99% of particles of the excipient and 1% 10% Magnesium Stearate with a ratio of Fine particles and Coarse particles between the vehicle Component 1:99 and 40: 60 percent by weight, being blended with active ingredients in Micronized form as a corticosteroid and its epimers of budesonide, beclomethasone Dipropionate,Formoterol and its stereoisomers. Particles of Magnesium Stearate partially cover the surface of the component and the vehicle.Coarse particles of the vehicle have an Index of Fissure of at least 1.25.Also relates to a process for preparing a Powder comprising: (i) comicronizar excipient particles and Magnesium Stearate and significantly reduce their sizes and (ii) esfereoniWhen mixed with coarse particles for VehicleOppfinnelsen tilveiebringer en formulering som skal administreres som et tørt pulver for inhalering egnet for effektiv levering av aktive ingredienser i det lave respiratoriske system hos pasienter som lider av lungesykdommer slik som astma. Spesielt tilveiebringer oppfinnelsen en formulering som skal administreres som tørt pulver for inhalasjon fri flytbar, som kan produseres på en enkel måte, fysisk og kjemisk stabil og i stand til å levere enten nøyaktige doser og høyt fine partikkelfraksjoner og lav styrke aktive ingredienser ved å anvende en høy eller medium motstandsanrodning.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/
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