Just to let people know that this stuff is very dangerous. My buddy was doing it and he took a shot before we went out to a buddies hosue, he thought he had consumed enough carb, however not too long after we arrived at our friend's house he collapsed, and I had to find a pop and pound it down his throat!

BE CAREFUL!

PS. It's a good idea to have to have access to a simple carb (whatever it may be) where ever you go or carry it with as I'm sure guys here have advised before but doesn't hurt to repeat it if it going to save a life or a hospital bill!