Journal
THERAPEUTIC ADVANCES IN PSYCHOPHARMACOLOGY
Volume 8, Issue 6, Pages 173-183Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1177/2045125318754472
Keywords
acute-phase schizophrenia; antipsychotic; augmentation; schizophrenia; switching
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Funding
- Ministry of Health, Welfare, and Labor of the Japanese Government (Comprehensive Research on Disability Health and Welfare) [H29-Seishin-Ippan-002]
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In terms of effectiveness of antipsychotics in schizophrenia, discrepancy often exists between results from double-blind randomized controlled trials and observations in emergency or acute-phase clinical practice. For instance, the antipsychotic switching strategy is not always applicable in emergency or acute-phase situations, and augmentation of another antipsychotic is occasionally done instead. In this review, we discuss strategies for early nonresponse to an antipsychotic drug such as switching and augmentation from the perspective of emergency and acute-phase treatment. We searched PubMed for the latest evidence on switching and augmentation strategies of antipsychotics for an emergency or acute-phase period. For risperidone and olanzapine, there is some evidence on switching and augmentation strategies in the management of acute-phase schizophrenia. There may be responders to olanzapine alone among early nonresponders to risperidone, whereas there may be few responders to risperidone alone among early nonresponders to olanzapine. However, there is still insufficient evidence at this time for application of these findings to routine clinical practice. For other antipsychotics, there is little evidence for their augmentation in acute-phase practice. We should be wary of polypharmacy, as multiple agents are too often prescribed by clinicians when not warranted. Considering current evidence, we propose how to switch antipsychotics in the acute phase of schizophrenia in routine practice.
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