Patent ID: 6641800
Filing Date: 2003-11-04
Classification: A61K,Y10S

Abstract:
A pressurized suspension aerosol composition comprising a liquefied hydrofluoroalkane, a powdered medicament dispersed therein, wherein the medicament particles in said powdered medicament have a mass median diameter of 0.01 to 10 microns, and a suspending agent comprising a polymer soluble in the liquefied hydrofluoroalkane, said polymer being present in an amount of 0.00001 to 10% w/w, said polymer being different from said powdered medicament and being selected from the group consisting of polymers including recurring 1-ethylene-pyrrolidin-2-one units, copolymers of 1-ethylene-pyrrolidin-2-one units and vinylacetate units, polyvinylacetate and acrylic acid/methacrylic acid ester copolymers, and wherein said aerosol composition is for administration by inhalation.