IRCT2015092924267N1 IRCT 2015-11-23 Chemical Injuries Research Center, Baqiyatallah University of Medical Sciences Effect of melatonin on sleep in sulfur mustard exposed patients Effect of melatonin administration on sleep quality in sulfur mustard exposed patients with sleep disorders 2015-04-16 anticipated 30 Complete https://irct.ir/trial/20527 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Used, Assignment: Parallel, Purpose: Treatment, Other design features: Patients were divided into two groups ( melatonin and placebo ) by random number table. In this study, patients and researcher were not aware of the type of intervention. the person who performed sampling of patients, gave Drug or placebo to patients and after completion of the study, researcher was aware of the type of intervention. 4 Sleep Disorders. Intervention 1: Melatonin; N acetyl 5 methoxy tryptamine; 3 mg; 3 mg oral tablet; A pill every night for 8 weeks; Nature Made. Intervention 2: Placebo; 3 mg; 3 mg oral tablet, A pill every night for 8 weeks; Tehran Chemistry Company.