HELP!! is alprazlam ok for dogs??

alright so i work in a pharmacy and i've seen tramadl and i sware i think xanax prescribed to dgs before plane ries and ther situations that can stress out a dog....my pitbull who is 80-100 lbs just accidently ate one of minethat fell n the floor...now she just threw up a little bit she's done this before gaggmg amd throwing up a litttle bit. its not a strong dose but will she boe okay? it cant kill her right? i have