bu·​tor·​pha·​nol ˌbyüt-ˈȯr-fə-ˌnȯl How to pronounce butorphanol (audio)
: 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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“Butorphanol.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/butorphanol. Accessed 22 Jul. 2024.

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