Good summary!

There is an ethical side to this which needs to be adressed as well. I do agree that there are situations when use of such substances could be ethically acceptable to use, like a surgeon performing a long and difficult life saving procedure. However, students passing an exam should not be one of those occasions, and are in my opinion the similar to the doping we regrettably see too much of in the sports. It would be a kind of cheating.

Imagine, an employer, hiring a new talent, that can choose between two equally good candidates and where it turns out one of them needs a constant supply of drugs to function. Who would you hire?