摘要:
Pressurized aerosol inhalation composition consisting essentially of a liquefied hydrofluoroalkane, a powdered medicament dispersible to form a suspension in the liquefied hydrofluoroalkane, and polyvinylpyrrolidone present in a concentration of 0.00001 to 10% w/w.
摘要:
Pressurized aerosol composition for administration by inhalation comprising a liquefied hydrofluoroalkane, a powdered medicament dispersed therein, and a suspending agent comprising a polymer soluble in the liquefied hydrofluoroalkane which is selected from polymers including recurring amide containing structural units, copolymers of amide containing units and carboxylic acid ester units, polyvinylacetate and acrylic acid/methacrylic acid ester copolymers.