If you want to stock something that folks WILL kill for, get some anti depressants. The withdrawal from that stuff is going to make folks go crazy. Literally.
Oh my, wow. That’s certainly something the average person doesn’t think about. Withdrawal from ADs can be debilitating, to say the least, even frightening. Someone very close to me went through it; even with tapering down, it was a weeks-long process that was no fun to watch. Big Pharma won’t even call it withdrawal; it’s “discontinuation syndrome” and all of it is downplayed to drs and patients alike so they get more people on them, roughtly 10% of the entire US population and counting.
And not just ADs - abrupt withdrawal from psychotropics used to treat serious mental illness will be MUCH worse. And those anti-anxiety meds - benzos. Hey, and not only that - withdrawal in general as it sweeps the general populace. Withdrawal from caffiene, from sugar, from alcohol, from tobacco, from drugs legal and illegal, from TV, from video games, from normal life, for Petes sake.
Gee, what a happy train of thought that is.