[Adherence to inhaled therapy in adult patients affected by asthma or COPD].

Inhaled treatment is the cornerstone of drug treatment for the two most common chronic obstructive respiratory diseases: asthma and chronic obstructive pulmonary disease (COPD). Therapeutic adherence is essential in the management of any chronic disease. In real life, only one-third of adult patients with chronic obstructive pulmonary disease have "good adherence".