[LostAngels]

First of all, (and I don't mean to rant and rave about unsafe drug interactions, but it's relevant and should be mentioned), I don't believe taking motion sickness medication (diphynhidrinate), after drinking to the point of nauseated, is a particularly smart idea.

That being said, there's really nothing you can do here. If you feel the desire to drink that much, you're going to throw up, whether it be in the morning or that night. It's your body's way of getting rid of as much alcohol as possible so you don't 'overdose'.

If you do somehow discover a way to avoid puking that doesn't involve abstinence, than your body is going to succumb to alcohol poisoning.
The point at which you begin puking is the first step to that.

Anyways, I guess my point is, just don't drink that much. And when you are drinking a lot, remember to drink a glass of water at least once every hour. That helps flush your system a bit.