Lets talk about the drug trade in Academy city. (Spoilers if it exists)

Does it exist? Is it an actual thing? There is too much content to go over all on my own and figure this out. But from my memory, I can't recall such a thing being around in Academy City. But it's an idea I thought about for my current fanfiction which was on hold due to Christmas holidays.

But before I commit any further, thought it would be best to get confirmation if it exists. And if not would like to discuss if such a thing would be doable in this city and what circumstances. The idea of a war on drugs story in Academy City is interesting because like in real life it's dangerous and it can be one of the many dark secrets that exist in this city's underworld.

Basically, it's a war of attrition and I want to write it effects on those involved in Academy city like members of Judgement and Anti-skill

Q1: So what do I mean by a Drug trade?
A1: Just like real life the illegal dealing of drugs that is considered dangerous to use affecting the health and stability of a user.

Q2: What kind of drug are you thinking about?
A2: I'm thinking about a drug which causes a temporary increase of esper levels but has nasty side effects from overuse or taking for a long period.

While I do think selling such a substance to the outside world would probably get crushed by Academy City to protect it's secrets. Within the city is a different matter and could be disguised as just another experiment to see it's overall effects.

It doesn't have to be an enhancement drug, but considering the aftermath of the level upper I can imagine there are still people that crave that boost in Esper ability to get ahead. And my scenario is somebody had filled that vacuum which the level upper left with this drug, leading to disastrous results for Judgment and Anti-skill. That's just my scenario for why it exists in my fanfiction but first does even a semblance of a drug trade exist in the city?