The choice of inhalation system depends on patient-specific factors, the properties of the inhalation system, and the medication with which it is to be used.
For patients who are unable to inhale in a controlled, coordinated manner, metered dose inhalers (MDI MDI
A metered-dose inhaler (MDI) is a device that delivers a specific amount of medication to the lungs, in the form of a short burst of aerosolized medicine that is usually self-administered by the patient via inhalation. ) that use a propellant gas should only be used together with a spacer or a holding chamber as far as possible. If the patient is not capable of creating an adequate inspiratory flow inspiratory flow
Indicate the volume inspired from the nebuliser, simulated during an in vitro analysis. , most dry powder inhalers (DPIs) are unsuitable. In these cases, nebuliser systems represent a good alternative.