Technique of inhaling bronchodilator drugs
Short-acting bronchodilator drugs may be administered by
- dose aerosol (with spacer) or
- various powder inhalers.
Either system is appropriate. However, an advantage of the combination of a dose aerosol and spacer is that it can even be used in patients with severe airway obstruction.
The dose is administered using the technique described in the instructions for use accompanying the inhaler. Usually the dose is delivered at the initial phase of a slow and deep inspiration. Each separate dose is administered during a separate inspiratory maneuver, until the full dose has been reached in adults or children. In patients with very severe airway obstruction, however, it may be necessary to administer more than one dose into the spacing device, the patient subsequently inhaling this while breathing quietly from the spacing device. This procedure may also be applied in small children.