A steroid alkaloid derived from skin secretions of the Phyllobates and Dendrobates genera of South American arrow-poison frogs. It is one of the most potent venoms known.

• 蟾毒素，从南美箭毒蛙属的Phyllobates和树棘蛙的蛙皮中分泌的一种类固醇生物碱。是已知毒性极强的毒物中的一种。