Seven Proventil HFA (albuterol sulfate 6.7 g hydrofluoroalkane inhalation aerosol) a and seven Ventolin HFA (albuterol sulfate 18 g hydrofluoroalkane inhalation aerosol) b MDIs were acquired from ...

a Adapted from Fromer L, Goodwin E, Walsh J. Customizing inhaled therapy to meet the needs of COPD patients. Postgrad Med. 2010; 122:83–93, updated using U.S. Food and Drug Administration.