
Bufotoxins are a family of toxic steroid lactones found in the parotoid glands, skin and venom of many toads (genus Bufo); other amphibians; and some plants and mushrooms. The exact composition varies greatly with the specific source of the toxin. It can contain: 5-MeO-DMT, bufagins, bufalin, bufotalin, bufotenin, bufothionine, epinephrine, norepi...
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http://en.wikipedia.org/wiki/Bufotoxin

a moderately potent poison secreted in the skin of many anuran amphibians, especially the typical toads (genus Bufo). The milky fluid contains ...
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http://www.britannica.com/eb/a-z/b/126

Family of toxic substances found in the parotoid glands, skin and venom of many toads
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https://sciencetrek.org/sciencetrek/topics/amphibians/glossary.cfm

a toxin obtained from the skin glands of the European toad, Bufa vulgaris.
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https://www.infoplease.com/dictionary/bufotoxin
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