The use of tocolvtic agents to enhance uterine relaxation and facilitate external cephalic version (ECV) has come under recent debate. We studied 90 breech presentations in late pregnancy who did not have contra-indications to ECV. The patients were randomised into 3 groups of 30 patients each: one was administered oral salbutamol 4 mg t.d.s.; another had intravenous salbutamol infused until th...