| 摘要 |
<p>The pharmaceutical aerosol composition contains the active ingredients, hydrofluoralkane propellant, co-diluent, and low volatile component used for increasing average mass aerodynamic diameter of aerosol particles upon the actuation of the inhaler. Owing to the presence of the low volatile component, the average mass aerodynamic diameter of aerosol particles is comparable with that produced in the composition containing Freon propellant.</p> |
