Severe cardiac arrhythmia on fexofenadine?
(1) One case of ventricular fibrillation during fexofenadine administration has been reported in a man with a pre-existing long QT interval.
D016907:Adverse Drug Reaction Reporting Systems; D006634:Histamine H1 Antagonists / Q000009:adverse effects; D006801:Humans; D008133:Long QT Syndrome / Q000139:chemically induced*; D016593:Terfenadine / Q000009:adverse effects / Q000031:analogs & derivatives*
D006634:Histamine H1 Antagonists; D016593:Terfenadine