Medical Dictionary

fentanyl

noun fen·ta·nyl \ˈfent-ən-ˌil\

Medical Definition of FENTANYL

:  a synthetic opioid narcotic analgesic C22H28N2O with pharmacological action similar to morphine that is administered transdermally as a skin patch and in the form of its citrate C22H28N2O·C6H8O7 is administered orally or parenterally

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