Alfentanil.
D000759:Adjuvants, Anesthesia / Q000008:administration & dosage / Q000009:adverse effects; D015760:Alfentanil; D000771:Anesthesia, Intravenous; D005283:Fentanyl / Q000008:administration & dosage / Q000009:adverse effects / Q000031:analogs & derivatives*; D006801:Humans
D000759:Adjuvants, Anesthesia; D015760:Alfentanil; D005283:Fentanyl