Xanax 3 mg is the brand name for a generic drug called alprazolam. Xanax belongs to a group of prescription medications called benzodiazepines (benzos for short), which includes Valium (diazepam), Ativan (lorazepam), and Klonopin (clonazepam), among others. Xanax 3 mg does not cause flatulence like some medications. When the central nervous system calms down, people with depression, anxiety, and panic attacks experience a calming effect that can help relieve symptoms.