I have a prescription to adderall and vyvanse so I have that. Studying is not so much "how do i do it" as "how many weeks ahead of time can I complete my work?". But I prefer using those "medicines" for partying or my own interests over the more tedious schoolwork, so if I'm out of my prescriptions, I find a nice, balanced gin and tonic really evens you out and allows you to focus. The trick is to stay precisely between buzzed and "getting there" at all times. If you stray above the danger zone, you're fucked. No more homework, you've got better things to do. You're going to just keep drinking and subsequently trying to get laid. And when that backfires, you end up posting on forums like this when you should have been studying for the past two hours.

But seriously, stay in the safe zone, and I swear upon YHWH that a properly mixed gin and tonic, when not done in excess, will do WONDERS for the hungry intellect in strive of focus and retaining knowledge.