Xopenex HFA is available as an aerosol that you inhale by mouth using a metered dose inhaler. The U.S. Food and Drug ...
Albuterol (salbutamol), levalbuterol terbutaline, or pirbuterol by metered dose inhaler (see Figure 4 for administration issues). Two to four inhalations is usual, but up to six inhalations can be ...