Mechanism of action of Salmeterol is:: (A) Pure b2 agonist, (B) Pure b1 agonist, (C) b1 + b2 agonist, (D) al agonist
Answer is A. Ans. is 'a' i.e., Pure b2 agonist Salmeterol* It is the first long acting p2 agonist with slow onset of action used by inhalation on a twice daily schedule for maintenance therapy, but not for acute asthma.* Concurrent use of inhaled salmeterol and inhaled glucocorticoids produces effects equivalent to double dose of corticosteroid alone.