beta-2 adrenergic agonists

Beta-2 adrenergic agonists are medications that relax the muscles around the airways in the lungs. They work by stimulating specific receptors called beta-2 receptors, which causes the muscles to loosen and open the airways. This helps improve airflow, making it easier to breathe, especially during asthma symptoms or other respiratory conditions like COPD. These drugs are usually inhaled for quick relief, and some are used regularly to prevent breathing problems. Examples include albuterol and salmeterol. They are effective in reducing shortness of breath and wheezing by rapidly opening constricted airways.