I feel more like the bupe just potentiates the alcohol, not the other way around. You don't really feel any more or stronger opiate type effects, but definitely more alcohol ones, mainly just getting sleepy and nauseous and uncoordinated. Not everyone gets a proper high from bupe, so trying to make it be something it's not for you by mixing it with something else is pretty pointless. Bupe and booze aren't even particularly synergistic, you're just on bupe and also kinda drunk.