IRCT20190928044907N4 IRCT 2021-08-27 Babol University of Medical Sciences The effectiveness of Dexmedtomidine and propofol during ERCP Comparison of the effectiveness of Dexmedtomidine and propofol during ERCP 2021-08-01 anticipated 80 Complete https://irct.ir/trial/57670 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: Patients will be randomly assigned to two groups of 40 using 4 blocks and 20 blocks with a ratio of 1: 1. In order to generate the allocation sequence, the free website www.randomization.com will be used. The notes will be written on separate sheets and will be placed in sealed envelopes and will be given to the principal investigator for study. N/A Sedation. Intervention 1: Control group: : Fentanyl at a dose of one microgram per kilogram of body weight up to a maximum of 100 micrograms with first receiving 1 mg per kilogram of body weight of propofol as STAT and then receiving a dose of 50 macro per kilogram per minute maintenance drug. Intervention 2: Intervention group: Fentanyl at a dose of one microgram per kilogram of body weight up to a maximum of 100 micrograms with a maintenance dose of dexmedetomidine at a dose of 1 microgram per kilogram of body weight per hour. No - There is not a plan to make this available Justification or reason for not sharing IPD is There is still no plan for its publish