Learn what to discuss and how you should take the drug Xanax. and how do they work?. Breaking the pill would cause too much of the drug to be released at one time. Alprazolam (Xanax) Brand Names: Xanax®. Some side effects may pass with time. Your provider can explain how these different treatments work with the medication. Here is best guide on How long does xanax stay in your system Urine and Blood you can read all about that. Thanks. The opinions expressed here are solely those of the. Before taking XANAX, tell your healthcare professional about any alcohol consumption and all prescription. or amend the Card Program without notice at any time. how long does it take for xanax to work? And how long does it keep working?? Xanax is the brand name of alprazolam, a prescription drug used to treat anxiety disorders. Xanax is prescribed for generalized anxiety disorder (GAD), anxiety. How long does it take xanax kicks in. I think your description about the duration and onset time of xanax is more. if it doesn't work I take one more half and. Find patient medical information for Xanax XR oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. Xanax - How long does the alprolozam work? I took.5 at noon and already felt anxious at 3? Asked 29 Jan 2012 by Anonymous Active 14 Jun 2015 Topics Find patient medical information for Xanax oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings.