Definition: A dry powder inhaler, or DPI for short, is a type of inhaler device for administering asthma medicine. It is similar to a metered dose inhaler, but the medication is in powder form, rather than in liquid form. You inhale a puff of the powder, rather than a mist of liquid.
Dry Powder Inhaler (DPI)
From Kathleen MacNaughton, R.N., former About.com Guide
Updated: July 31, 2008
About.com Health's Disease and Condition content is reviewed by the Medical Review Board
Explore Asthma
Must Reads
About.com Special Features
8 Ways to Cut Drug Costs
Learn how to save money on medications with these recommendations. More >
Healthy Bodies, Healthy Minds
Keep yourself, and your family, happy and healthy this fall with these tips. More >
Also from About.com:
©2009 About.com, a part of The New York Times Company.
All rights reserved.