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A new era in the diagnosis and treatment of tardive dyskinesia
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A new era in the diagnosis and treatment of tardive dyskinesia
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Journal Article
A new era in the diagnosis and treatment of tardive dyskinesia
2023
Overview
Tardive dyskinesia (TD) is a heterogeneous, hyperkinetic movement disorder induced by dopamine-receptor blocking agents that presents a unique challenge in the treatment of psychosis. Although acceptance of TD as a serious consequence of antipsychotic treatment was resisted initially, subsequent research by many investigators in psychopharmacology contributed to a rich store of knowledge on many aspects of the disorder. While basic neuroscience investigations continue to deepen our understanding of underlying motor circuitry, past trials of potential treatments of TD focusing on a range of theoretical targets were often inconclusive. Development of newer antipsychotics promised to reduce the risk of TD compared to older drugs, but their improved tolerability unexpectedly enabled an expanding market that paradoxically both increased the absolute number of patients at risk and diminished attention to TD which was relegated to legacy status. Fortunately, development and approval of novel vesicular monoamine transporter inhibitors offered evidence-based symptomatic treatment of TD for the first time and rekindled interest in the disorder. Despite recent progress, many questions remain for future research including the mechanisms underlying TD, genetic predisposition, phenomenological diversity, whether new cases are reversible, how to implement best practices to prevent and treat TD, and whether the development of novel antipsychotics free of the risk of TD is attainable. We owe our patients the aspirational goal of striving for zero prevalence of persistent symptoms of TD in anyone treated for psychosis.
Publisher
Cambridge University Press
Subject
Antipsychotic Agents - adverse effects
/ Antipsychotic Agents - therapeutic use
/ Diabetes
/ Dopamine
/ Dystonia
/ Humans
/ Patients
/ Tardive Dyskinesia - chemically induced
/ Tardive Dyskinesia - diagnosis
/ Tardive Dyskinesia - drug therapy
/ Tardive Dyskinesia - therapy
/ Vesicular Monoamine Transport Proteins - antagonists & inhibitors
