Debate solved if this poor bro is dead...
I don't know why we are debating whether 100mgs of xanax will not kill you? Why even try to defend that it might not kill you? All I know is that if I saw one of my bros eat 100mg's of xanax I would fear for his life for sure. I hope the original poster of this thread posts that he's alright. I'm guessing he bought some raw powder and may have messed up the conversion and eaten 100mg's of xanax by accident? (maybe not, but I think the answer is pretty clear). All the studies in the world won't change my mind about real world experience: i've seen people after a hard night of clubbing (taking various forms of speeds all night) eat xanax to come down and get some sleep and all I know is that it doesn't take much to knock you out (1-2 x 2mg bars knocks people out cold everytime).
Physical benzo withdrawal is one of the worst withdrawals out there. It is one of the physical withdrawals that can kill you. A bad heroin addiction won't kill you cold turkey, but a benzo withdrawal can.
Sorry for the long post, but xanax is strong stuff and 100mgs is an outragous amount to take, from what i've seen, 100mgs at once will kill you, put you in a coma or cause some sort of permanent damage no matter what kind of tolerence you have built up.