Delirium during i.v. Citalopram Treatment: A Case Report

This paper reports the case of a 65-year-old depressed man without somatic illnesses in whom monotherapy with i.v. citalopram induced delirium. He was admitted to a closed geriatric ward as a psychotically depressed patient with somatic and depressive delusions, and suicidal thoughts. Because he rejected all oral medications, monotherapy was initiated with 20 mg of i.v. citalopram per day. After 3 days, he became delirious and physically aggressive. This description of acute hyperkinetic delirium associated with i.v. citalopram therapy is the first one of this kind addressing side effects of i.v. citalopram.