title: [Risperidone-induced priapism].
abstract: Priapism or pathological, prolonged erection, is a rare adverse effect sometimes associated with psychotropic medication and is due to alpha adrenergic receptor blockade. Priapism in a 44-year-old mental patient receiving risperidone is described. Urinary retention was relieved by catheterization, followed by saline irrigations. Priapism was relieved when a hematoma was evacuated from his penis. This may be the first description of priapism following risperidone alone, since a previous report included a patient receiving risperidone together with 2 other psychotropic medications. Priapism should be looked for in men receiving risperidone, a novel antipsychotic medication.
authors.affiliation: Eitanim Psychiatric Center, Jerusalem.
authors.forename: S
authors.initials: S
authors.lastname: Maizel
authors.forename: L
authors.initials: L
authors.lastname: Umansky
authors.forename: H Y
authors.initials: HY
authors.lastname: Knobler
mesh_terms: D000328:Adult; D014150:Antipsychotic Agents / Q000009:adverse effects*; D006406:Hematoma / Q000601:surgery; D006801:Humans; D008297:Male; D010409:Penile Diseases / Q000628:therapy; D011317:Priapism / Q000139:chemically induced* / Q000503:physiopathology / Q000628:therapy; D018967:Risperidone / Q000009:adverse effects*; D012559:Schizophrenia / Q000188:drug therapy*; D014546:Urinary Catheterization; D016055:Urinary Retention
chemical_list: D014150:Antipsychotic Agents; D018967:Risperidone