The article briefly presents currently accessible dry powder inhalers (DPI). Basing on the data from the literature, we discussed the most common mistakes related to the utilisation of DPI as well as their clinical and economic consequences. We also extensively analysed all factors that may influence the efficacy and safety of inhaler therapy of asthma and COPD, mostly with the use of DPI. In addition, we indicated the potential to improve the efficacy of inhaler therapy from the doctor and COPD or asthma patient perspective. We also presented a DPI choice algorithm including the patient's preferences and competences.
Keywords: COPD; Ellipta inhaler; asthma; dry powder inhaler; errors in inhalation; patient.