Which drug class can trigger bronchospasm if used improperly by asthmatics?

Beta-blockers can indeed trigger bronchospasm in asthmatics, especially when used improperly. These medications antagonize beta-adrenergic receptors, which are vital for the relaxation of bronchial smooth muscle. In asthmatic patients, whose airways are already hyperresponsive, blocking these receptors can lead to bronchoconstriction and worsening of respiratory symptoms.

While corticosteroids, sodium channel blockers, and anti-inflammatory agents play important roles in managing different conditions, they do not share the same risk of inducing bronchospasm when used in asthmatic patients. Corticosteroids are used to reduce inflammation and are commonly prescribed to manage asthma. Sodium channel blockers primarily affect cardiac conduction and do not have a significant role in bronchoconstriction. Anti-inflammatory agents are also used to treat asthma but are generally seen as supportive in managing airway inflammation rather than directly influencing bronchospasm under normal usage conditions. Therefore, improper use of beta-blockers is particularly concerning for individuals with asthma due to their potential to exacerbate bronchospasm.