Which two bronchodilators are classified as beta2-adrenergic agonists?

The classification of bronchodilators as beta2-adrenergic agonists is significant in understanding how they work to relieve bronchospasm. Beta2-adrenergic agonists primarily target the beta2 receptors in the smooth muscle of the bronchi, leading to relaxation and bronchodilation.

Epinephrine and Albuterol fall into this classification. Epinephrine is a non-selective adrenergic agonist but has strong effects on beta2 receptors, making it effective in treating acute asthma attacks or anaphylactic reactions. Albuterol, on the other hand, is a selective beta2-adrenergic agonist known for its rapid action and is commonly used as a rescue inhaler during asthma exacerbations.

The other choices consist of medications with different mechanisms and classifications. Atropine is an anticholinergic agent, and Theophylline is a methylxanthine that works through different pathways. Prednisone is a corticosteroid with anti-inflammatory properties, not a bronchodilator, and Ephedrine is a mixed-action adrenergic agonist that does not selectively target beta2 receptors. Salbutamol is actually another name for Albuterol, but Ipratropium is again an anticholinergic and does