title: Obsessive compulsive symptoms associated with quetiapine treatment in a schizophrenic patient: a case report.
abstract: OBJECTIVE
  Atypical antipsychotics (AAPs) are used as adjunct therapy in the treatment of resistant obsessive-compulsive symptoms (OCSs). Paradoxically other reports suggest that AAPs, particularly clozapine, risperidone, and olanzapine can induce de novo emergence or exacerbation of OCSs in psychotic patients. The authors present here the first report suggesting an association between de novo appearance of OCSs and quetiapine treatment in a schizophrenic patient.
  
  
  METHODS
  The patient was a 33-year-old woman with the diagnosis of paranoid schizophrenia, who displayed OCSs for the first time during treatment with quetiapine. The symptoms reduced remarkably when fluoxetine was added to her treatment regimen while keeping the quetiapine dosage unchanged.
  
  
  CONCLUSIONS
  AAP-induced OCSs merit consideration and early identification, as these drugs are now widely in use in clinical practice. This rare but disabling side effect should also be monitored in quetiapine treated schizophrenic patients.
authors.affiliation: Department of Psychiatry, Faculty of Medicine Hacettepe University, 06100 Sihhiye Ankara, Turkey. ozers@hacettepe.edu.tr
authors.forename: Suzan
authors.initials: S
authors.lastname: Ozer
authors.forename: Murat
authors.initials: M
authors.lastname: Arsava
authors.forename: Aygün
authors.initials: A
authors.lastname: Ertuğrul
authors.forename: Başaran
authors.initials: B
authors.lastname: Demir
mesh_terms: D000328:Adult; D014150:Antipsychotic Agents / Q000627:therapeutic use*; D003987:Dibenzothiazepines / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D009771:Obsessive-Compulsive Disorder / Q000150:complications / Q000188:drug therapy*; D000069348:Quetiapine Fumarate; D012559:Schizophrenia / Q000150:complications / Q000188:drug therapy*
chemical_list: D014150:Antipsychotic Agents; D003987:Dibenzothiazepines; D000069348:Quetiapine Fumarate