Aerosol formulation containing a particulate medicament

摘要

Aerosol formulations comprising:(A) A medicament in particulate form and having a surface coating of a surfactant;(B) A hydrogen-containing fluorocarbon or chlorofluorocarbon propellant; and(C) A cosolvent having higher polarity than the propellant which cosolvent is present in an amount of up to 5% w/w based upon propellant;and methods for their preparation.