Prophylactic Effects of Ephedrine, Ondansetron and Ringer on Hemodynamic Changes during Cesarean Section under Spinal Anesthesia - a randomized clinical trial.

Background: Hemodynamic change during spinal anaesthesia for cesarean section is prevalent.

Objective: Comparing the prophylactic effects of ephedrine, ondansetron and ringer on hemodynamic changes in patients undergoing cesarean section with spinal anaesthesia.

Material And Methods: This randomized clinical trial was carried out on pregnant women undergoing elective cesarean sec-tion referred to teaching hospitals of Mashhad, Iran.