bufotoxins

bu·fo·tox·ins

(bū'fō-toks'inz),

1. A group of steroid lactones (conjugates of bufagins and suberylarginine at C-3) of digitalis present in the venoms of toads (family Bufonidae); their effects are similar to but weaker than those of the bufagins.

2. Specifically, the main toxin of the European toad (Bufo vulgaris).