Overview Methadone vs. Fentanyl Administration on Postoperative Pain Control in Pediatric Patients Undergoing Cardiac Surgery Status: Terminated Trial end date: 2019-02-07 Target enrollment: Participant gender: Summary The purpose of this study is to determine if methadone improves postoperative pain control in pediatric patient's undergoing cardiac surgery. Phase: N/A Details Lead Sponsor: Andrew WaberskiTreatments: FentanylMethadoneMorphine