Xanax is the brand name for the drug Alprazolam which is used to treat anxiety and panic disorders. You can take White Xanax Bars if you have been diagnosed with similar conditions. Xanax belongs to the benzodiazepine medication class, which enhances the effect of a naturally occurring chemical in the brain that reduces abnormal brain activity. Xanax comes in a variety of dosage strengths. White Xanax Bar is a high-dose Xanax bar that contains 2mg of active Alprazolam. A rectangular cuboid imprinted with "XANAX" or "2" on either side of the bar distinguishes it from other medications. White Xanax bars are a powerful and effective anxiety, panic disorder, and phobia medication. Xanax (alprazolam) is a benzodiazepine that works as a relaxant and helps in the treatment of anxiety-related symptoms (GAD), phobias, and panic attacks.