A Comparison of Epidural and Intramuscular Morphine in Patients Following Cesarean Section

In this randomized, double-blind study we compared the use of epidural (EP) and intramuscular (IM) morphine for 24 h after cesarean section. The analgesic efficacy and incidence and severity of side effects were examined. Respiration was monitored noninvasively and continuously by both pulse oximetry and respiratory inductive plethysmography for the entire study