Dry Powder Inhalers: Which Factors Determine the Frequency of Handling Errors?

Abstract

Dry powder inhalers are useful in the management of younger patients with normal lung function or mild airway obstruction. In older patients with advanced chronic obstructive pulmonary disease, the risk of ineffective inhalation remains high despite training in inhalational technique. A metered-dose inhaler with a spacer might be a valuable treatment alternative in a substantial proportion of these patients.