Do you know anyone who is addicted to zanax? And how did their personality change after taking them?

I don't know about addicted but I do know a few who were prescribed it for panic attacks.....and they will go nowhere without it. The fear of the panic attacks is so debilitating they will do nothing without the Xanax being nearby. Are we speaking of the same drug....the one I know if is spelled Xanax but pronounced the same?