Which type of medication is commonly used as a rescue inhaler in asthma management?

Beta-agonists are commonly used as rescue inhalers in asthma management because they are effective bronchodilators that quickly relieve acute asthma symptoms. These medications work by stimulating the beta-2 adrenergic receptors in the smooth muscle of the airways, which leads to relaxation and widening of the air passages. This results in a rapid decrease in wheezing, coughing, and shortness of breath, making them ideal for immediate relief during an asthma attack.

In contrast, corticosteroids are primarily used as maintenance therapy to control inflammation over the long term rather than for quick relief. Anticholinergics have a slower onset and are not typically the first choice for rescue. Leukotriene modifiers are also used for long-term control and prevention of asthma symptoms but do not provide the immediate relief that beta-agonists do. Therefore, beta-agonists stand out as the go-to choice for acute symptom management in asthma patients.