what is salmeterol
Salmeterol is a long-acting beta2-adrenoceptor agonist (LABA), used in moderate to severe persistent asthma following previous treatment with a short-acting beta2-adrenoceptor agonist (SABA) such as salbutamol (albuterol).he primary noticeable difference of salmeterol from salbutamol, and other short-acting beta2-adrenoceptor agonists (SABAs), is its duration of action. Salmeterol lasts approximately 12 hours in comparison with the salbutamol, which last about 4â6 hours.