Pharmacology Autonomic nervous system fe23abba The following sympathomimetic amine has agonistic action on a1 + a2 + b1 + b3 adrenoceptors, but not on b2 receptors A Phenylephrine B Isoprenaline C Noradrenaline D Adrenaline High-Yield Explanation Ref:- kd tripathi; pg num:-130