Not the same drug, but the effects are almost exactly the same.
Rippers or 'G'; both are bad news with similar results.
I've been thinking about this drug thing...
Now, I personally think it's more likely that she self-"medicated" rather than was drugged based on the strip club owner's testimony.
BUT I'm stepping into my asbestos jammies and hypothetical devil's advocate mode to throw out a logical reason why she could have been drugged by a lacrosse teammate besides rape, of course. It seems that the boys were unhappy with the way the show was going, it's possible that one of them decided to "loosen up" the girls to get into more of a uninhibited state of mind.
But now that I think about it, I don't know when the drinks were allegedly served, before or after the dance. So the answer to that might just blow that theory out of the water.