en Medication Error, What Is the Reason? عمومى General پژوهشي Research <b>Background: </b>Medication errors due to different reasons may alter the outcome of all patients, especially patients with drug poisoning. We introduce one of the most common type of medication error in the present article. <br><b>Case: </b>A 48 year old woman with suspected organophosphate poisoning was died due to lethal medication error. Unfortunately these types of errors are not rare and had some preventable reasons included lack of suitable and enough training and practicing of medical students and some failures in medical students’ educational curriculum. <br><b>Conclusion:</b> Hereby some important reasons are discussed because sometimes they are tre-mendous. We found that most of them are easily preventable. If someone be aware about the method of use, complications, dosage and contraindication of drugs, we can minimize most of these fatal errors. Educational Curriculum, Medication Error, Medical Students. Educational Curriculum, Medication Error, Medical Students. 1408 1410 http://ijt.arakmu.ac.ir/browse.php?a_code=A-10-83-5&slc_lang=en&sid=1 Ali Banagozar Mohammadi علی بناگذارمحمدی 10031947532846004640 10031947532846004640 No Department of Internal Medicine, Toxicology and General Ward, Sina Hospital, Tabriz University of Medical Sciences, Tabriz, Iran. Department of Internal Medicine, Toxicology and General Ward, Sina Hospital, Tabriz University of Medical Sciences, Tabriz, Iran. Hamid Noshad حمید نوشاد hamidnoshad1@yahoo.com 10031947532846004641 10031947532846004641 Yes Department of Internal Medicine, Chronic Kidney Disease Research Center, Sina Hospital, Tabriz University of Medical Sciences, Tabriz, Iran. Department of Internal Medicine, Chronic Kidney Disease Research Center, Sina Hospital, Tabriz University of Medical Sciences, Tabriz, Iran. Ali Ostadi علی استادی 10031947532846004642 10031947532846004642 No Department of Internal Medicine, Toxicology and General Ward, Sina Hospital, Tabriz University of Medical Sciences, Tabriz, Iran. Department of Internal Medicine, Toxicology and General Ward, Sina Hospital, Tabriz University of Medical Sciences, Tabriz, Iran. Ali Reza Ghaffari علیرضا غفاری 10031947532846004643 10031947532846004643 No Department of Internal Medicine, Toxicology and General Ward, Sina Hospital, Tabriz University of Medical Sciences, Tabriz, Iran. Department of Internal Medicine, Toxicology and General Ward, Sina Hospital, Tabriz University of Medical Sciences, Tabriz, Iran. Massoud Dinevari مسعود دینوری 10031947532846004644 10031947532846004644 No Department of Internal Medicine, Toxicology and General Ward, Sina Hospital, Tabriz University of Medical Sciences, Tabriz, Iran. Department of Internal Medicine, Toxicology and General Ward, Sina Hospital, Tabriz University of Medical Sciences, Tabriz, Iran.