The importance of this pathology lies not only in its high prevalence, which is expected to increase due to the aging of society but also in its high mortality. In Europe, it is estimated that 50% of adult patients do not use the inhaler correctly. The clinical development of COPD includes periods of stability interspersed with symptomatic exacerbations, which usually involve hospitalization. During these hospitalizations, respiratory symptoms are worsening.Nevertheless, in Europe, it is estimated that 50% of adult patients do not use the inhaler correctly. Thus, it is very important the pharmacological education in this patients.