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Is AirDuo a dry powder inhaler? AirDuo RespiClick is a dry powder inhaler. It uses breath actuation to deliver fluticasone and salmeterol directly into the lungs. The device requires no hand-breath coordination and relies on a patient's strong inhalation to release the powder. Why do users ask whether AirDuo is an MDI? Many patients switch from metered-dose inhalers that require shaking and pressing at the same time. AirDuo RespiClick avoids that coordination challenge because it activates only when you breathe in. What happens if you shake AirDuo like an MDI? Shaking the device does not affect performance. It does not contain a propellant, so no shaking is needed. Patients sometimes still shake it by habit from prior MDI use. How does AirDuo compare with traditional MDIs? AirDuo RespiClick delivers a consistent dose regardless of storage orientation. Traditional MDIs often need correct position and shaking before use. The difference in mechanism makes AirDuo easier for patients who have trouble with coordination. When does the AirDuo patent expire? The primary U.S. patent covering the RespiClick device itself expires in 2027. Related formulation patents expire later. Patients and competitors monitor these dates because they affect availability of generics.
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