title: Obsessive-compulsive symptoms associated with clozapine and risperidone treatment: three case reports and review of the literature.
abstract: Treatment-emergent obsessive-compulsive symptoms (OCSs) have raised concern since the widespread introduction of serotonin-dopamine antagonists (SDAs) for the treatment of schizophrenia. Further investigations of SDA-emergent OCSs and their response to anti-obsessional agents will be beneficial for clinicians in helping patients who suffer from this problem. We present three cases of schizophrenia in which distressing OCSs occurred during clozapine or risperidone treatment. OCSs were assessed consecutively using the Yale-Brown Obsessive-Compulsive Scale. The OCSs of these three patients were responsive to anti-obsessional agents, including fluvoxamine, clomipramine, and paroxetine. We also review the current literature and discuss the possible pathophysiology and psychopathology of SDA-emergent OCSs.
authors.affiliation: Department of Psychiatry, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.
authors.forename: Chiao-Li
authors.initials: CL
authors.lastname: Ke
authors.forename: Cheng-Fang
authors.initials: CF
authors.lastname: Yen
authors.forename: Cheng-Chung
authors.initials: CC
authors.lastname: Chen
authors.forename: Shang-Ju
authors.initials: SJ
authors.lastname: Yang
authors.forename: Weilun
authors.initials: W
authors.lastname: Chung
authors.forename: Ming-Jen
authors.initials: MJ
authors.lastname: Yang
mesh_terms: D000328:Adult; D014150:Antipsychotic Agents / Q000009:adverse effects / Q000627:therapeutic use*; D003024:Clozapine / Q000009:adverse effects* / Q000627:therapeutic use; D006801:Humans; D008297:Male; D009771:Obsessive-Compulsive Disorder / Q000139:chemically induced* / Q000628:therapy; D018967:Risperidone / Q000009:adverse effects* / Q000627:therapeutic use; D012559:Schizophrenia / Q000188:drug therapy*; D016896:Treatment Outcome
chemical_list: D014150:Antipsychotic Agents; D003024:Clozapine; D018967:Risperidone