Methadone was more effective than clonidine in the control of postoperative pain in videolaparoscopic surgeries under total intravenous anesthesia with remifentanil; and using clonidine was not better than not using it.

Hemodynamic control was satisfactory in both groups. Continuous infusion of sufentanil promoted better postoperative pain control with decreased consumption of rescue analgesic and, consequently, reduced incidence of PONV and reduced time of stay in the recovery room.

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