Letter: Innovar and its separate components, droperidol and fentanyl.
D004329:Droperidol / Q000494:pharmacology*; D004338:Drug Combinations; D005283:Fentanyl / Q000494:pharmacology*; D006801:Humans; D009458:Neuroleptanalgesia / Q000009:adverse effects*
D004338:Drug Combinations; D004329:Droperidol; D005283:Fentanyl