In this letter to the editor, Glancy discusses 2 cases in which patients committed antisocial acts, e.g. property offences, following the administration of selective serotonin reuptake inhibitors (SSRIs). One of the subjects started to experience suicidal ideation & intense feelings of depression after being treated with fluoxetine hydrochloride. When the medications were discontinued, the symptoms disappeared within one week. (5 refs.)