La sustancia tóxica presente en los sapos se puede dividir por su estructura química en dos grupos: \n* bufadienolidas, que son glucósidos cardíacos (por ejemplo, bufotalina, bufogenina) \n* Sustancias relacionadas con la triptamina (por ejemplo, bufotenina) Los sapos que se sabe que secretan bufotoxina son: \n* Bufo alvarius \n* Bufo americanus \n* Bufo arenarum \n* Bufo asper \n* Bufo blombergi \n* Bufo boreas \n* Bufo soplo \n* Bufo bufo gargarizans \n* Bufo formosus \n* Bufo fowleri \n* Bufo marinus \n* Bufo melanostictus \n* Bufo peltocephalus \n* Bufo quercicus \n* Bufo regularis \n* Bufo valliceps \n* Bufo viridis \n* Bufo vulgaris

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Bufotoxins are a family of toxic steroid lactones found in the parotoid glands, skin and poison 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, norepinephrine, and serotonin. The term bufotoxin can also be used specifically to describe the conjugate of a bufagin with suberylargine. The toxic substances found in toads can be divided by chemical structure in two groups: \n* bufadienolides which are cardiac glycosides (e.g. bufotalin, bufogenin) \n* tryptamine related substances (e.g. bufotenin) Toads known to secrete bufotoxin are: \n* Bufo alvarius \n* Bufo americanus \n* Bufo arenarum \n* Bufo asper \n* Bufo blombergi \n* Bufo boreas \n* Bufo bufo \n* Bufo bufo gargarizans \n* Bufo Gutturalis \n* Bufo formosus \n* Bufo fowleri \n* Rhinella marina (formerly Bufo marinus) \n* Bufo melanostictus \n* Bufo peltocephalus \n* Bufo quercicus \n* Bufo regularis \n* Bufo valliceps \n* Bufo viridis \n* Bufo vulgaris

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