White Xanax (Alprazolam) is real. Xanax comes in several forms and is a bar-shaped pill. This pill is labeled “XANAX” on one side and “2” on the other. White Xanax bars contain 2 mg of Xanax. It is just unique for its color, it works like normal other Xanax strength. It is a prescription medication for the short-term treatment of the symptoms of anxiety disorders or panic disorders