A formatting error in the article by Nazila Jamshidi and Andrew Dawson has been corrected. View corrected article.

The diaphoresis row in Table 3 (Clinical features of neuroleptic malignant syndrome, serotonin toxicity, anticholinergic syndrome and sympathomimetic syndrome) was incorrect. Diaphoresis in serotonin toxicity is moderate (not severe), it is not a feature of anticholinergic toxicity (not moderate), and it is moderate (not severe) in sympathomimetic syndrome.