Critical inhaler errors in asthma and COPD: a systematic review of impact on health outcomes

Inhaled drug delivery is the cornerstone treatment for asthma and chronic obstructive pulmonary disease (COPD). However, use of inhaler devices can be challenging, potentially leading to critical errors in handling that can significantly reduce drug delivery to the lungs and effectiveness of treatment.A systematic review was conducted to define 'critical' errors and their impact on health outcomes and resource use between 2004 and 2016, using...