IRCT20240208060937N1 IRCT 2024-02-18 Esfahan University of Medical Sciences Comparison effect of Dexamethasone on pain, nausea and vomiting and restlessness after rhinoplasty. Investigating the effect of preventive dose of dexamethasone on pain, nausea, frequent vomiting and postoperative restlessness in patients undergoing septorhinoplasty. 2024-02-20 anticipated 70 Complete https://irct.ir/trial/75427 interventional Randomization: Randomized, Blinding: Triple blinded, Placebo: Used, Assignment: Parallel, Purpose: Prevention, Randomization description: Randomization of patients is done in a simple way. In this way, the samples are placed in sealed envelopes by number and each patient is asked to choose one envelope from the set of envelopes at the time of visit. Depending on whether the number is odd or even, the patient is assigned to one of the intervention or control groups, Blinding description: The method of blinding will be such that the patients and the person collecting the data are unaware of the type of drug used. The drugs are prepared by one of the operating room personnel who is not in the course of the study in similar and coded syringes and given to the project manager for injection. Also, the person collecting the data is not aware of the type of drug injected to the patients. 3 Septorhinoplasty surgery. Intervention 1: Intervention group: receiving 0.1 mg/kg dexamethasone as intravenous infusion​. Intervention 2: Control group: recipient of normal saline with the same volume as the intervention group. No - There is not a plan to make this available Justification or reason for not sharing IPD is The plan belongs to the government organization and it is not possible to share it.