: a white crystalline alkaloid C19H24N2O obtained from some South American shrubs (genus Remijia) of the madder family that has been used as a substitute for and is more toxic than quinine

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“Cinchonamine.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/cinchonamine. Accessed 24 Apr. 2025.

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