You would treat them and any other Rear-fanger like it was a full blown HOT. In general all the non-US native stuff is far more dangerous then the US natives. Most wont kill you....but if you are allergic you are in trouble. Most of the arboreal rear fanged can get the fangs into play far quicker then a terrestrial like a hognose......once they grab an item they want to get it still quick so they dont loose it. Therefore their toxins are a bit stronger.