Green Xanax is a brand name of alprazolam. Buy Green Xanax bar S 90 3 as a member of the drug class is known as sedative-hypnotics and, as referenced, it is a benzodiazepine. Green Xanax is a transitional-acting benzodiazepine. Despite its viability for specific clinical uses, it has risky withdrawal impacts — particularly after delayed use — and can make narcotics substantially more hazardous.