Aerosol composition

摘要

An aerosol composition comprising a propellant and a first particulate material comprising particle having a median aerodynamic diameter within the range 0.05 to 11 mum, such as a medicament suitable for pulmonary inhalation, and a second particulate material comprising particles having a median volume diameter within the range 15 to 200 mum. The presence of the second particulate material provides good suspension properties, particularly where the propellant is a hydrofluoro alkane.