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Serotonin syndrome overlapping with neuroleptic malignant syndrome: A case report and approaches for differentially diagnosing the two syndromes

2015; Elsevier BV; Volume: 18; Linguagem: Inglês

10.1016/j.ajp.2015.10.003

1876-2026

Koichi Nisijima,

Treatment of Major Depression

Serotonin syndrome (SS) and neuroleptic malignant syndrome (NMS) are life-threatening adverse reactions caused by serotonergic antidepressants and neuroleptics, respectively. SS and NMS have overlapping clinical features, and thus differentially diagnosing the syndromes can be difficult in patients who are taking both types of drugs. Here, the author reports a unique case of a patient who developed SS that overlapped with NMS after taking imipramine and lithium carbonate with the subsequent addition of metoclopramide. This is the first case report of SS that overlapped with NMS. The author also briefly summarizes the clinical symptoms of each syndrome and describes the approaches that were used to differentially diagnose the two syndromes.