Seriously though, I wonder what will happen to the prescription/drugstore model if full drug legalization ever took place. It's an interesting question - you can get cocaine or heroin walking in off the street, but you need a doctor's prescription for some Xanax or Aderall? Would everything go over the counter? Is that wise?
There are also legal drugs that have similar effects to things like Adderall. A lot of people don't know about them or use them because they haven't been researched as much and come in powder form.
At the very least I think that you shouldn't be put in prison for carrying pills without a prescription.
You might find this Vice article interesting. It talks about how Oxycotin is essentially legal heroin.
http://motherboard.vice.com/read/how-big-pharma-hooked-ameri...
I say we should take it slow when it comes to legalization. Perhaps start with things that are found in nature. Marijuana, psilocybin mushrooms, being legally able to harvest the opium from poppy seed plants, etc.
This already happens. Diamorphine (heroin) is commonly used as a painkiller in hospitals. If you've ever been seriously injured and wound up in hospital with a tube going into your arm attached to a button which gives you a dose of painkiller, limited to something like 3 presses an hour, then you've probably taken heroin, likely in large amounts. The nurse may well have called it "morphine" to avoid scaring you.
Famously, "Heroin" was originally a trademark of the Bayer company.
EDIT: apparently this is only true in the UK. This might be why we don't have the fancy modern opiates here, oxycontin etc.