Droperidol has been reported to cause serious arrhythmias.
Sosis
Mitchel B
MB
D000932:Antiemetics / Q000009:adverse effects*; D001145:Arrhythmias, Cardiac / Q000139:chemically induced* / Q000503:physiopathology; D004329:Droperidol / Q000009:adverse effects*; D006801:Humans; D008133:Long QT Syndrome / Q000139:chemically induced / Q000503:physiopathology
D000932:Antiemetics; D004329:Droperidol