[Comparison of prophylactic infusion of ephedrine and phenylephrine during Cesarean section under spinal anaesthesia].Ugeskr Laeger. 2006 Apr 03; 168(14):1428-31.UL
Spinal anaesthesia for caesarean delivery may be associated with hypotension and fetal acidosis. Prophylactic infusion of phenylephrine (PE) immediately after the induction of anaesthesia appears to be a more effective approach than administration of ephedrine to reduce the incidence, frequency and severity of hypotension. Furthermore, PE appears to be associated with better fetal acid-base status than is ephedrine.