I was the first one to discover this about 2 months ago and Antivenom cures animal poison. Worked really well against a radscorpion that was trying to eat me.
Who needs anti-venom when you can just svck out the poison?
This is actually a common misconception. Not only is it unlikely that you will successfully remove the venom, but you also risk causing an infection around the bite.
I should know--I've been preparing for desert warfare all month.