To my understanding the procedure can be done one of two ways; severing the duct that connects the gland to the fangs or completely removing the gland and replacing it with an implant. Completely removing the gland is assumed to be more damaging but unlike just severing the duct, it doesn't run the risk of rehealing and allowing the venomoid to unexpectedly become hot again.

Honestly, I'm on the fence about venomoids because I can see them being a good idea in certain situations but at the same time, it just seems like a reason for stupid people to own animals they are in no way equipped to handle.