Earlier quoted context omitted.
There's other ways to realign incentives. A buy back program would do a lot honestly to restrict the supply. A lot of people who got them for legit purposes would still end up with a ton leftover when they would get their next prescription. If they were able to get more money returning them to the pharmacy or counting them towards their next prescription than selling them to other students, that's what they would do.
If we're still talking about ADHD medications then... I have no idea where you're coming from. ADHD medications are very tightly controlled - if you accidentally double dose a few times and need an early fill you're going to get grilled (or even denied) by the pharmacist. There is a small margin for error but for the most part people using ADHD medications get precisely what they need to get to the next drug refill a…
That's not a thing. Nobody is getting grilled coming in early for their stimulant medications. They just say "come back in a couple days" and "have a nice day." I've filled multiple stimulant meds in a period of 2 weeks from the same doc and same pharmacist. Neither care (I dumped out a drug that had side effects so I needed something else).
If people double up, after they run out they just don't have pills for a few days until they get another fill.