InhalationDrugDeliveryGettheedgeinacompetitiveenvironment.1MeteredDoseInhalersMDIs—ThePreferredChoiceforInhalationTherapyIn1956,3Mintroducedtheworld’sfirstMeteredDoseInhaler(MDI).Sincethen—formorethan40years—MDIshavebeenusedtodelivermedicationsthattreatpatientswithavarietyofpulmonarydiseases.Today,theMDI—popularwithbothphysiciansandpatientsalike—isthemostwidelyusedsystemforrespiratorydeli...