Order Link:- https://mayomeds.com/xanax-vs-valium/ The main difference between xanax and valium is that xanax starts working within 15-30 minutes, but Valium starts its action after 30 minutes. That means, for quick action, you can take xanax, and for slow action with lengthy action, you can take valium. Xanax works for a short-term duration as compared to valium. Although valium will start working very slowly, its effect will last up to 12 hours. Xanax will start action in a fast manner, but can relieve anxiety for only 4-6 hours. Alprazolam is the generic name for xanax, and Valium has Diazepam as its generic name. Overall, Valium is a long-acting, powerful pill that affects you slowly, and Xanax is a short-acting, reliable pill that will be a great choice for your sudden panic attacks.