Green Xanax bars are one of the different types of Xanax bars. Xanax is a brand and street name for the generic drug Alprazolam. Green Xanax is available for sale in the United States. Alprazolam is a prescription anti-anxiety medication that belongs to a class of drugs called a benzodiazepine. http://www.sydlexia.com/forums/viewtopic.php?p=391252#391252