Xanax, also known as Alprazolam, is an anti-depressant drug belonging to the benzodiazepine family. When someone is depressed, there is a unique imbalance of chemicals in the brain. Xanax works on these chemicals, correcting the imbalance by slowing down the nerve impulses. This further brings about a sense of calmness and relaxation for the sufferer. You can get Xanax bars for sale online easily, but like all other drugs of the benzodiazepine family, Xanax has a high probability of abuse.