inhalationDrugDeliveryGettheedgeinacompetitiveenvironment.1MeteredDoseinhalersMDIs—ThePreferredChoiceforinhalationTherapyin1956,3Mintroducedtheworld’sfirstMeteredDoseinhaler(MDI).Sincethen—formorethan40years—MDIshavebeenusedtodelivermedicationsthattreatpatientswithavarietyofpulmonarydiseases.Today,theMDI—popularwithbothphysiciansandpatientsalike—isthemostwidelyusedsystemforrespiratorydeli...