A good friend who was a game & fish officer

Apparently, the creature latches onto you and starts to grind away with its jaws. All the while excreting a toxin. That will most likely require a trip to the hospital where your skin will be opened up to allow your muscles to expand outward like a boiled hotdog.

The biggest reason for being bitten by those lizards seems to be people messing around with them.

The bite is usually forceful and inflicts injury and serious pain. Once the Gila latches on, it chews on the site, releasing venom along the grooves in its teeth into the now open wound. It generally does not release its painful hold until it feels that that it is no longer in danger.

There isn't an antivenom for this lizard because there are few recorded bites and drug companies don't want to make a product that has no demand. Seeing a Gila monster is rare. Gila monsters spend 90% of their lives underground.

Although the bite is rarely life-threatening, symptoms from a Gila monster bite may include swelling, intense burning pain, vomiting, dizziness, weakness, rapid heart rate, and/or low blood pressure. Preventing a bite is usually possible.

Saliva to make an insulin. Can’t remember which shot it was but who knows?