• Waraporn Chau-in, Somboon Thienthong, Aksorn Pulnitiporn, Wattana Tantanatewin, Witoon Prasertcharoensuk, and Wimonrat Sriraj.
• Department of Anesthesiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand. warcha@kku.ac.th
• J Med Assoc Thai. 2008 Jan 1;91(1):68-73.

ObjectiveTo test whether a reduction in post operative morphine consumption could be achieved by a single-dose of etoricoxib before induction of anesthesia.DesignRandomized, double-blind, placebo-controlled study.Material And MethodTwo hours before surgery, patients undergoing transabdominal hysterectomy (under general anesthesia) were randomized to a single oral dose of 1) etoricoxib 120 mg (n = 17), 2) etoricoxib 180 mg (n = 17), or 3) placebo (n = 15). Intravenous morphine was given for patient-controlled analgesia (PCA) device. Morphine consumption, pain scores both at rest and on coughing, and side-effects were recorded at 1, 2, 4, 8 and 24 h after surgery. Patients' global evaluation of study medication was assessed at the end of the present study.ResultsEtoricoxib provided greater clinical benefit than the placebo in terms of mean morphine in milligram at 24 hour consumption (stardard deviation): a) 26.4 mg (SD of 11.2) for etoricoxib 120 mg; b) 27.2 mg (SD of 9.9) for etoricoxib 180 mg; and, c) 36.6 mg (SD of 8.9) for the placebo group. At 8 h post surgery, pain both at rest and on coughing in the active drug groups was significantly less than in the placebo, while pain on coughing was significantly less at 24 h. Patients reported better global satisfaction and less somnolence in the etoricoxib groups.ConclusionSingle dose etoricoxib 180 mg given before surgery provides the same analgesic effect as 120 mg for post operative pain after an abdominal hysterectomy.

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