IRCT20181117041682N1 IRCT 2018-11-29 Ahvaz University of Medical Sciences The effect of transcranial direct current stimulation on decreasing craving tDCS The effect of transcranial direct current stimulation (tDCS) on decreasing craving and preventing recurrence of methamphetamine users 2018-12-22 anticipated 25 Complete https://irct.ir/trial/35355 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Used, Assignment: Parallel, Purpose: Treatment, Randomization description: In this study, a random number table will be used. In this table, random numbers do not follow any obvious patterns for randomization, Blinding description: An expert technician with no knowledge of the subject and an electric stimulator. 2-3 Drug abuse. Intervention 1: Intervention group: The true tDCS group will receive 2 sessions of right anode and left cathode stimulation sessions by an experienced technician with no knowledge of the subject and an interventional therapist randomly for 20 minutes and 2 mA on the lateral posterior frontal area. Intervention 2: Control group: The tDCS fake group will receive 2 mAh for 1 minute and will not receive a stream in the next 19 minutes. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is No more information