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Serotonin syndrome
  1. Charlotte Elizabeth Evans1,
  2. Joseph Sebastian2
  1. 1The Royal Melbourne Hospital Intensive Care Unit, Melbourne, Victoria, Australia
  2. 2Queens Square Hospital for Neurology and Neurodisability, London, UK
  1. Correspondence to:
 Dr C E Evans
 Flat 730, The Whitehouse, 9 Belvedere Rd, London SE1 8YU, UK; thewelshlady007{at}


Serotonin syndrome is an under-reported and under-recognised condition that occurs on administration of selective serotonin re-uptake inhibitors alone, or in combination with other medication known to increase levels of 5-hydroxytryptamine.

This case report demonstrates signs and symptoms associated with their overdose and illustrates the importance of recognition of this syndrome to instigate appropriate treatment for the patient.

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