after December 31, 2008, and patients should be transitioned to
a hydrofluoralkane (HFA
) propelled albuterol inhaler now. To
date, the three HFA
-propelled albuterol inhalation aerosol inhalers on the market include ProAir™ HFA, Proventil® HFA, and Ventolin® HFA. In addition, levalbuterol, the (R) enantiomer of racemic albuterol, is also available as Xopenex HFA™ inhalation aerosol.