What is a potential risk associated with the use of an inhaler or spray medication?

When considering the use of an inhaler or spray medication, mild airway obstruction can occur as a potential risk. This can happen due to various factors, including improper technique in using the inhaler, which may prevent the medication from reaching the lungs effectively. Instead, the medication may induce a localized inflammatory response or cause bronchial irritation, leading to constriction or mild obstruction of the airways.

Proper inhalation technique is crucial to ensure that the medication effectively enters the lungs rather than being retained in the throat or upper airway. If the inhaler is not used as directed—such as not holding the breath after inhalation or failing to shake the device properly—the medication may not disperse correctly, resulting in inadequate relief of symptoms and the possibility of mild airway obstruction.

While other options, like systemic overdose and oral toxicity, can occur in various contexts, they are less directly associated with the typical use of inhalers or nebulizers. Inhalers are designed to deliver medication directly to the lungs, minimizing the risk of these systemic effects compared to oral medications. Respiratory depression is also generally not a concern with inhaled treatments unless specifically indicated by the medication type or dosing.