You will be able to drink more alcohol, with less effect so be careful driving the next day. I would recommend taking phets with alcohol rather than drinking alone. You're mind won't be as hazy and your judgement will be better. BTW I'm not exactly pro-drug, but I'm an ex alcoholic and could always behave and manage to stay out of lockup, only if I took some speed before a big drinking sesh. Thats just my two bobs worth anyway man