Effect of Propofol Administration Time on the Incidence and Severity of Intrathecal Morphine-induced Pruritus in Parturient Undergoing Elective Cesarean Delivaries

patients intrathecal anaesthesia with morphine

patients will receive 0.5 mg/kg propofol diluted in 10 ml saline 0.9% IV injection 15 min before the end of surgery

patients will receive 0.5 mg/kg propofol diluted in 10 ml saline 0.9% IV injection just before intrathecal anaesthesia