Before buying Xanax online know about Xanax. Xanax(Alprazolam) is commonly used to treat anxiety, and panic disorder with or without the fear of open spaces. and it belongs to the benzodiazepine drugs class which act on the brain and CNS to produce a calming effect. It works by increasing the effects of a certain GABA in the body. After taking it start work within 15-30 minutes. and it stays in the patient's body for 2 days. it was the 41st most commonly prescribed drug in the USA In 2022.