IRCT2017020532395N1 IRCT 2017-11-20 Vice chancellor for Reserch of Mashhad university of medical sciences The Design and Evaluation of a Message-Based Feedback System to Change The Behavior of General Practitioners to Reduce Prescription of Dexamethasone to Outpatients The Design and Evaluation of a Message-Based Feedback System to Change The Behavior of General Practitioners to Reduce Prescription of Dexamethasone to Outpatients 2016-11-05 anticipated 19 Complete https://irct.ir/trial/25253 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Not used, Assignment: Parallel, Purpose: Basic scienece, Other design features: Table of random numbers. N/A Index prescription. Intervention 1: Intervention group: Physicians who prescribed dexamethasone were divided into two groups according to the median Prescribing percentage, each of which was divided into two groups Intervention and control are divided into. Three months to the patients of the intervention group and three months later, the physicians of the intervention group and their patients received SMS with the subject of non-application and inappropriate dexamethasone Prescribing. Intervention 2: Control group: this group wont received any feedback.