Alprazolam 2mg is a white round pill. Alprazolam 1mg is a green oval. alprazolam .25mg is a white oval. alprazolam .25 mg is also a white round pill. alprazolam .5 is a light orange round pill. alprazolam .5mg is a yellow oval. alprazolam 2mg is a yellow rectangle. alprazolam 1mg is a blue oval.