I was talking to a girl working at a pharmacy a while back and she said they used to sell it otc and you had to take approx.two pills for every three drinks so if you're gonna go out and shit-faced you'll be taking almost half the box. You'll probably forget to keep popping pills at the bar. She also said all that vitamin c will give you the shits.
Doesn't seem worth it to me.
A hangover is a sign that you're hurting your body and somebody trys to invent a pill to mask the fact that you're killing yourself!