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batrachotoxin

Pronunciation: ba-tra-kō-tok′sin

Definition: A neurotoxin from the Colombian arrow poison frogs (Phyllobates spp.). It is nontoxic when ingested. If it is injected or if ulcers are present, it will cause an irreversible increase in permeability of sodium ions in nerve membrane, producing paralysis.

[G. batrachos, frog, + toxin]

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.

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