Yellow Xanax has a rectangular shape, just like Green Xanax. It has 2mg Alprazolam content. This is a generic Xanax but produces the same effect as White Xanax bars. It is commonly known as the Yellow school bus pill on the streets. Yellow Xanax is also available in 1mg format. https://www.meetup.com/Inner-Engineering-Seattle-Isha-Yoga-Meditation-Classes/messages/boards/thread/52986500