Efficacy Response of Inhaled HFA-Albuterol Delivered via the Breath-Actuated Autohaler™ Inhalation Device Is Comparable to Dose in Patients with Asthma

Handling difficulties, such as poor coordination of actuation and inhalation, are common in patients using press and breathe (PB 1, 2, or 4 puffs from a HFA-albuterol Autohaler; 1 or 2 puffs from a HFA-albuterol P&B. Both active inhalers delivered 90 µg albuterol base equivalent/actuation from the actuator. The change from baseline...