<prompt> Which of the following is long acting sympatho mimetics used in Bronchial asthmaSalbutamolTerbutalineBamboterolSalmetrol  <response>: Salmetrol 218-KDT 6thSalmetrol - It is first -long acting selective b2 agonist with slow onset of action It is also more b2 selective and lipophilic than salbutamolFormoterol - another long acting selective b2 agonists has faster onset of action 