A metered dose inhaler (MDI) delivers a specific
amount of medicine in aerosol form. This makes it possible to inhale the
medication, instead of taking it in pill form. MDI's are commonly used
to treat asthma, COPD, and other respiratory conditions.
Review Date: 5/16/2007
Reviewed By: Alan Greene, M.D., F.A.A.P., Department of Pediatrics, Packard Children's Hospital, Stanford University School of Medicine; Chief Medical Officer, A.D.A.M., Inc.