Which of the following is an adrenergic drug preferred for arresting labour?: (A) Ritodrine, (B) Isoprenaline, (C) Salbutamol, (D) Terbutaline
Answer is A. (Ref: KDT 6/e p323) Isoxsuprine and ritodrine are selective b2 agonists useful as tocolytic agents for arresting labour. Pulmonary edema is an impoant adverse effect of these agents.