Metaproterenol sulfate

Metaproterenol sulfate is the sulfate salt of metaproterenol, a short-acting and selective sympathomimetic beta-2 receptor agonist. It acts as a bronchodilator by binding to beta-2 adrenergic receptors in bronchial smooth muscle, increasing intracellular cAMP levels, which leads to muscle relaxation and improved airflow.