What dose do you take of the pregabalin? Most of the time it would be a safe mix, but pregabalin does tend to slow m breathing if my dose is quite high (500mg+), but honestly ive never really liked the alprazolam pregabalin mix only because it makes me do some of the most stupid stuff ive ever done, and i really dont get the excitement-aspect of pregabalin if i take alprazolam. But this is just my experience. It is really good for relaxation, but its almost too much relaxation for me...like SUPER couchlock. Nonetheless, you should be fine mixing them as long as your dose of both are relatively low