Usually not. If you're getting flushing it might be that you're being exposed to alcohols (anything with an -OH group, not just ethanol -- the kind we drink) and aren't aware of it. So this could be through certain soaps/shampoos, or perfume/cologne. I was on antabuse for a while, and many professionals told me its use is pretty outdated. I tend to agree, but if it works for you, then keep taking it I guess and just take less. That should cut down on excessive flushing.