An aerosol solution composition for use in an aerosol inhaler comprises an active material, a propellant containing a hydrofluoroalkane, a cosolvent and optionally a low volatility component to increase the mass median aerodynamic diameter (MMAD) of the aerosol particles on actuation of the inhaler.
The composition is stabilized by using a small amount of mineral acid and a suitable can having part or all of its internal metallic surfaces made of stainless steel, anodized aluminium or lined with an inert organic coating.
一种用于气溶胶吸入器的气溶胶溶液组合物包括一种活性材料、一种含氢
氟烷烃的推进剂、一种共溶剂和一种可选的低挥发性成分,以增加吸入器启动时气溶胶粒子的质量中值空气动力学直径(
MMAD)。
使用少量矿物酸和一个合适的罐子来稳定这种成分,罐子的部分或全部内
金属表面由不锈钢、阳极氧化铝或惰性有机涂层制成。