What’s worse is that this is all the explanation we get for why Data was affected and it comes from Data himself while he’s affected…

We are more alike than unlike, my dear Captain. I have pores. Humans have pores. I have fingerprints. Humans have fingerprints. My chemical nutrients are like your blood. If you prick me, do I not leak?

So apparently, androids can get drunk because they have pores, fingerprints and chemical nutrients.