Welcome to Blue Xanax Store! Here you can find Alprazolam Extended-Release 0.5 mg, imprinted with EM 105. Alprazolam is used to treat anxiety and panic disorder, and belongs to the benzodiazepines drug class. It is classified as a Schedule 4 controlled substance under the Controlled Substance Act (CSA). Please consult your healthcare provider for more information about this medication.