4.3 Review

Linezolid-associated serotonin toxicity: a systematic review

Journal

EUROPEAN JOURNAL OF CLINICAL PHARMACOLOGY
Volume 79, Issue 7, Pages 875-883

Publisher

SPRINGER HEIDELBERG
DOI: 10.1007/s00228-023-03500-9

Keywords

Linezolid; Serotonin syndrome; Drug interactions; Serotonin toxicity; Systematic review

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This systematic review evaluates the evidence linking linezolid to serotonin toxicity when used alone or in combination with other serotonergic agents. The results show a low incidence of serotonin toxicity both in linezolid monotherapy and combination therapy, and symptom resolution is achieved in most cases after discontinuation of linezolid and serotonergic agents.
PurposeThis systematic review aims to evaluate the existing evidence associating linezolid to serotonin toxicity when used as monotherapy or when co-administered with other serotonergic agents.MethodsA systematic literature search using PubMed (till March 2023), IDWeek meetings (2003-2023), the European Congress of Clinical Microbiology and Infectious Disease Annual Meetings (2001-2023), and the American College of Clinical Pharmacy (1999-2023) identified studies and abstracts related to linezolid and serotonin toxicity.ResultsA total of 84 studies were included. The data collected in retrospective/observational studies compared the incidence of serotonin toxicity with linezolid monotherapy at 0.0050% and linezolid combination therapy at 0.0134%. All cases which discontinued linezolid and serotonergic agent/s at signs and symptoms of toxicity found symptom resolution; 75% of cases reported serotonin toxicity resolution within 24-48 h after discontinuation.ConclusionLinezolid therapy when optimal should not be deferred due to the risk of serotonin syndrome. The data collected reveals a low prevalence of serotonin toxicity in both linezolid monotherapy and linezolid concurrent with other serotonergic agents.

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