May Non-antipsychotic drugs improve cognition of schizophrenia patients?

Research output: Contribution to journalArticlepeer-review

Abstract

Rationale: Cognitive impairment in schizophrenia patients is associated with poor outcome and it represents one of main challenges of pharmacological treatment. Unfortunately, second-generation antipsychotics have not yielded the expected results in the improvement of these symptoms. Objective: The purpose of the present review paper is to summarize and discuss the available data about the efficacy of non-antipsychotic drugs in the treatment of cognitive symptoms of schizophrenia. Methods: A research in the main database sources has been performed to obtain a comprehensive overview. Studies with different methodologies (open and double-blinded) have been included, while studies with schizoaffective patients have been excluded. Results: Several non-antipsychotic compounds have been tested with the purpose to improve cognitive symptoms in schizophrenia patients, but no molecule has a significant pro-cognitive activity. Conclusion: Available data do not support the superiority of non-antipsychotic drugs vs. placebo for cognitive enhancement in schizophrenia. Preliminary results indicate mirtazapine, mianserine, lamotrigine, tandospirone, cyproheptadine, valacyclovir and omega-3 fatty acids as the most promising compounds, however no definitive conclusions can be drawn in the light of small sample size studies.

Original languageEnglish
Pages (from-to)41-50
Number of pages10
JournalPharmacopsychiatry
Volume48
Issue number2
DOIs
Publication statusPublished - 2015

Keywords

  • cognition
  • psychopharmacology
  • schizophrenia

ASJC Scopus subject areas

  • Pharmacology (medical)
  • Psychiatry and Mental health
  • Medicine(all)

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