maybe not potentiate? but they'd have additive effects. one has a longer half life than the other. at least in taking the k-pins you may not experience any rebound effects from the xanax? i'm just using my 2cents here.
however, do not take any kpins. you will black out. 2.25mg of xanax is already a lot. hopefully you have a tolerance cos if it were me i'd have blacked out by now. hopefully you didn't end up taking the kpins.
that's just my suggestion - otherwise i really wouldn't mix benzos unless one had a decent tolerance.
i know that anything over 1mg of xanax has me fucked up. i prefer valium due to it's gentle touch and longer half-life. those doses are just blackout central imo.
homeless ----> BDD