It wouldn't. In general with this combo, avoid it but if for some reason you just totally have lowered inhibitions or something make sure you stay awake as long as possible. And keep the doses in general of both rather low.
sigh.....of course it's not gonna cause dangerous resp depression. Man these kinda questions remind me of the guy who thought that doing 5mg oxy and 5mg diazepam was gonna make him OD.
One of the most dangerous combinations if overdone. So just, don't over do it. A lot of people get the urge to drink more and more.. try to shut yourself off.