Moff, if you don't want to end up with chronic paranoia(to name one of the hundreds of possible problems), do not mess around with drugs that act on the chemical balances in your brain, or atleast until you fully understand the medication(since you inquired about it on a Computer Security board it appears you do not have very much drug knowledge). Xanax is very popular because it is like Valium, but Xanax plays with the chemical balances in your brain, and some people tweak out and have perminant mental problems from it. One thing to remember, drugs that play with the chemical balances in your brain are designed to correct the imbalance, but if the imbalance is not present, it will cause it to occur. Another thing I just thought of, I know a dude who takes Paxil for Bi-Polar Syndrom, well he never acted odd or anything before, well after he started taking it, he became very very hyperactive and cheerful some days, and then other days he's attempting suicide. And his mom is the type who if he acts the slightest bit odd, she takes him and tries to get him put on something...
Curse's Bible:
http://www.erowid.org