Prescription of inhalers in asthma and COPD: Towards a rational, rapid and effective approach

We focus on the prescription of pMDIs and DPIs at the GP office or at the outpatient clinic of the hospital, and we propose an evidence based approach enabling the caregiver to make a rational choice in only a few minutes by just considering the following four simple questions: Who?, What? Where? and How? (the so-called 3W-H approach).