American hellebore

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Noun1.American hellebore - North American plant having large leaves and yellowish green flowers growing in racemesAmerican hellebore - North American plant having large leaves and yellowish green flowers growing in racemes; yields a toxic alkaloid used medicinally
bugbane, Indian poke, Veratrum viride, white hellebore
false hellebore, hellebore - perennial herbs of the lily family having thick toxic rhizomes
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Agents to be avoided include American hellebore, butterbur or other petasites, kava, marijuana, melatonin (available only as an orphan drug in the United States), mugwort, passion flower, quassia, rauwolfia, Siberian ginseng, taumelloolch, tulip tree, and valerian.
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