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Anesth Essays Res. 2017 Jan-Mar;11(1):165-168. doi: 10.4103/0259-1162.186617.

The Effect of Paracetamol versus Meperidine on Postoperative Pain of Cesarean Section.

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Anesthesiology, Critical Care and Pain Management Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran.



Meperidine and paracetamol are frequently used in postoperative pain control. We evaluated the effect of paracetamol versus meperidine on postoperative pain control of elective cesarean section in patients under general anesthesia.


In this randomized double-blind study, seventy mothers' candidate for cesarean section under general anesthesia were randomized in paracetamol group (n = 35), received 1 g paracetamol in 100 ml normal saline, and meperidine group (n = 35), received 25 mg meperidine in 100 ml normal saline and then compared regarding the pain and vomiting severity based on visual analog scale (VAS).


Two groups did not show significant difference regarding pain score based on VAS during 30 min after surgery in the recovery room, however, the pain score after 30 min in paracetamol group was significantly more than meperidine group. The difference between two groups regarding pain score in surgery ward at 0, 2, 4, 6 h, were not significant, however, pain score after 6 h in meperidine group was significantly lower than paracetamol group. The score of vomiting based on VAS in the recovery room in meperidine group was marginally more than paracetamol group (P > 0.05). The score of vomiting, based on VAS in meperidine group was significantly more than paracetamol group during the 24 h in the surgery ward. The analgesic consumption in meperidine group during 24 h after surgery was significantly lower than paracetamol group.


We indicated that the meperidine decreased postoperative pain score and analgesic consumption more than paracetamol, but increased the vomiting score.


Cesarean section; general anesthesia; meperidine; paracetamol; postoperative pain

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