IRCT2017032323559N10 IRCT 2017-04-24 Vice chancellor for research, Shahid Beheshti University of Medical Sciences Comparison of the three drug combination succinylcholine and thiopental "with" propofol and fentanyl "or" intravenous midazolam and fentanyl "success and complication reduction in shoulder The comparison of the success and complications in shoulders reduction with using three drug combination succinylcholine and thiopental "with" propofol and fentanyl "with" midazolam and fentanyl in Imam Hussein hospital of Tehran. 2017-04-21 anticipated 150 Other https://irct.ir/trial/20080 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Other design features: This study is double-blind. In this study, we have 2 types of envelopes. Envelopes A is containing dexamethasone and ondansetron and Envelopes B which contains dexamethasone and Plazil. Patients by executing and by table of random numbers divided into two A & B groups. According to Patient group, Envelopes For drugs injection will be delivered to anesthesia technician. Anesthesia technician does not know the type of injected drug. 2-3 Reduction of shoulders. Intervention 1: The first group: consists of succinylcholine 20 mg and thiopental with 5.3 mg/kg dose(drugs prescription to titrated and slow injection). Intervention 2: The Second group: consists of propofol with 1-3 mg/kg doses and Fentanyl with 2-3 mg/kg dose(drugs prescription to titrated and slow injection). Intervention 3: The third group: includes a midazolam with 3-5 mg dose and fentanyl with 2-3 mg/kg dose(drugs prescription to titrated and slow injection).