Hey spanishfly, what's up.
well here's my opinion of drinking while on clen.
you are taking clen to get a thermogenic effect by raising your bodys temperature. Well even though you get all warm inside after having a few drinks, you are actually lowering your body temp by doing so. so, you may not be getting the results you want from the clen. but as long as you are not drinking every nite, you should be fine.