Im on bupe few months so there is no buzz but i still feel them.. anyway drank 2 beers yesterday (after 3 weeks of being alcohol free) and amazingly i felt kinda "tipsy"... couldnt belive that 2 beers did so much so for me awnser is yes
if you wanna go down that road, which most would say is inadvisable, (taking multiple CNS depressants, which can lead to not breathing at high enough amounts)
then you really need to reduce the dosage of both substances, as they will potentiate eachother.