FENTANYL By N., Pam M.S. - May 11, 2013 a very potent opioid analgesic that is used for anesthesia during surgery, for the management of severe cancer pain in patients resistant to other opioids. FENTANYL: "Do you know Fentanyl is used in anaesthesia? Yes, it is." Related Psychology Terms BUTORPHANOL BUPRENORPHINE OPIOID ANALGESIC MEPERIDINE OPIOID DEPENDENCE PROPHYLACTIC SURGERY BUPRENORPHINE NARCANNALTREXONE OPIOID RECEPTOR NALOXONE Cite this page: N., Pam M.S., "FENTANYL," in PsychologyDictionary.org, May 11, 2013, https://psychologydictionary.org/fentanyl/ (accessed March 31, 2020).