Overview Comparison of Tramadol, Pethidine and Morphine in the Treatment of Pain After Thoracic Surgery Status: Not yet recruiting Trial end date: 2024-12-09 Target enrollment: Participant gender: Summary Comparison of analgesic effects of tramadol, aldolan and morphine under thoracic surgery Phase: Phase 4 Details Lead Sponsor: Baskent UniversityTreatments: MorphineTramadol