Take the libertarian claptrap somewhere else, please. The person entitled to determine whether you should take Adderall is your doctor.
I can't imagine someone voluntarily giving away their freedom to choose what to put in their bodies, but people like you do it every day. It's a shame that your misguided decisions take away my freedom as well.
I'm not making a value judgement, I'm just making an observation. The way I see it, the less drugs needed to keep me operational, the better. So I choose that kind of doctor. But other people like their drugs, and choose doctors that prescribe drugs.