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Dry Powder Inhalers This small device is similar to a metered dose inhaler MDI but the drug is in powder form The patient exhales out a full breath places the lips around the mouthpiece then quickly breathes in the powder Note that the technique is different than for MDIs -- dry powder inhalers do not require the timing and coordination that are necessary with MDIs There are other important differences so make sure that you always know the proper technique for the method you are using Dry powder inhalers are becoming more common in part because they do not use the CFC propellant found in an MDI CFCs damage the ozone and will be phased out of MDIs in the next few years Dry powder inhalers are as effective as MDIs -- in fact some may prove to be slightly more effective Naturally there are several disadvantages If the patient exhales directly toward the device the powder can be blown out Also much of the powder ends up in the mouth which can cause unwanted side effects -- this is similar to what happens when a patient puts an MDI directly into their mouth As with MDIs it is recommended that you wash your mouth after administering the drug Greene Ink Inc 2003 What is a dry powder inhaler A dry powder inhaler DPI is similar to a metered dose inhaler Both are handheld devices that deliver a precisely measured dose of asthma medicine into the lungs The advantage of using a dry powder inhaler is that it is breath-activated so you dont have to coordinate activating the inhaler spraying the medicine while at the same time inhaling the medication Instead you simply breathe in quickly to activate the flow of medication In this way the breath-activated discharge of medicine is always coordinated with your inhalation effort In a dry powder inhaler the asthma medication comes in a dry powder form - inside a
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