Death as a result of an adverse reaction from nalidixic acid

This article reports a death occurring in an apparently healthy, 27-year-old male as a consequence of an adverse reaction to a common urinary tract antibiotic (nalidixic acid). The deceased had cardiac enlargement at autopsy. The clinical presentation before his sudden death coincides with the occurrence of seizures and psychotic reaction as an adverse reaction to the injection of the drug, rather than merely a result of cardiac symptoms.