alprenolol
noun
al·pren·o·lol
al-ˈpren-ə-ˌlȯl, -ˌlōl 
: a beta-blocker that has been used in the form of its hydrochloride C15H23NO2·HCl especially to treat cardiac arrhythmias
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“Alprenolol.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/alprenolol. Accessed 26 Nov. 2025.
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