Blue Xanax Bars B707 is a potent antianxiety medication indicated to treat a host of psychological conditions like anxiety disorder, panic disorder, GAD, and phobia with or without agoraphobia. It belongs to the group of medications called benzodiazepine acts as a central nervous system depressant. In addition, Blue Xanax Bar B707 is the 2Mg of Alpprazoam pill that has the imprint of XANAX 1.0 on one side and B707 on the other side of the bar.