Development of Methods of Instructing Patients on Use of Dry Powder Inhalers

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  • Dry Powder Inhaler 吸入指導方法の確立を目指して

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The basic inhalation procedures for the Dry Powder Inhaler (DPI) and the pressurized Metered-dose Inhaler (pMDI) in the control of bronchial asthma are very different.Effective methods of instructing patients on the use of the pMDI have already been reported and we considered effective ways of instructing patients on inhalation with the DPI since none had really been established,for instance with regard to the basic inhalation procedure and inhalation persistence time.We considered that the inhalation persistence time for DPI should be 1 second or more.With this inhaler,we found that it was effective to use an instruction sheet,a practice device,and an inhalation circuit tester in instructing patients on inhalation with it.<br>In conclusion,patients should be made aware of the importance of a persistence time of at least 1 second as well as the inhalation velocity,and any method of instructing them on inhalation procedures should be easy to understand.

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