Xanax - A prescription drug that is used for Anxiety and Panic Attacks.
Klonopin - Also a prescription drug that is used for anxiety and panic attacks, but not as strong as Xanax
Oxycontin - Narcotic pain reliever.
By the way, they call Xanax "bars" because some of the companies that produce Xanax, shape the pills as rectangular 'bars.' A bar is 1 milligram of Xanax, a double bar is a pill that contains 2 milligrams of Xanax.