"How many times do we have to prove [that stimulant ADHD medication improves health outcomes] before doctors and governments stop treating the stuff like poison?"
Proof is irrelevant: medicine is a political power structure which systematically fails people on its supposed purpose every minute of every day, not because it is doing that job imperfectly, but because it is lying about its actual job. The people it systematically fails, the people it systematically kills, are on purpose.
Yeaaah...
*gestures vaguely in the direction of this horror story*