Tehran University of Medical Sciences Journal of Pharmaceutical Care 2322-4630 3 3-4 2017 03 15 77 78 EN Effat Davoudi-Monfared Department of Clinical Pharmacy, 13-Aban Drug and Poison Information Center, Tehran University of Medical Sciences, Tehran, Iran Hamidreza Taghvaye Masoumi Clinical Pharmacy Department, Faculty of Pharmacy, Tehran University of Medical Sciences, Enqelab Square, Tehran, Iran 2016 08 29 2016 08 30 An 80-year-old man developed nightmares while using citalopram for mild depression. During the first two weeks of treatment with citalopram (10 mg daily), he didn’t experience any adverse reactions. After two weeks, he developed nightmaresand vivid dreams that were repeated every night and awakened him in midnight. Although the signs of depression were relatively disappeared, the patient was anxious during the day due to nightmares and nocturnal awakenings. We, as pharmacists, consulted his family to decrease the dose to 10 mg every other day, and tell his physician as soon as possible. He decreased the doses and after two weeks the frequencyof nightmares was less. More follow-up revealed that the nightmares were totally disappeared one month after drug withdrawal. A Naranjo assessment score of 7 was obtained, showing a probable relationship between theadverse reaction and suspected drug. https://jpc.tums.ac.ir/index.php/jpc/article/view/98 https://jpc.tums.ac.ir/index.php/jpc/article/download/98/86