Alprazolam, sold under the trade name Xanax among others, is a short-acting benzodiazepine. In the UK, alprazolam is recommended for the short-term treatment (2–4 weeks) of severe acute anxiety. . 0.25 mg, 0.5 mg, 1 mg, and 2 mg tablets, while extended release tablets are available as 0.5 mg, 1...