USE OF MAGNESIUM STEARATE IN DRY POWDER COMPOSITIONS SUITABLE FOR INHALATION AND COMPOSITIONS SUITABLE FOR INHALATION

摘要

The use of magnesium stearate (I) in dry powder formulations for inhalation to improve resistance to moisture is new. Independent claims are also included for: (1) the use of magnesium stearate to reduce the effect of invasive moisture on the fine particles in dry powders for inhalation; and (2) dry powder formulations for inhalation comprising: (a) an inactive carrier of non-inhalant particle size; (b) a pharmaceutically active agent in the form of a salt or ester of inhalant particle size; and (c) 0.25-1 wt.% of magnesium stearate.