butorphanol

noun
bu·​tor·​pha·​nol | \ ˌbyüt-ˈȯr-fə-ˌnȯl How to pronounce butorphanol (audio) \

Medical Definition of butorphanol

: a synthetic analgesic and antitussive opioid drug administered in the form of its tartrate C21H29NO2·C4H6O6 as a nasal spray or by injection especially for the relief of pain — see stadol

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