Amphetamines and opioids are very different classes of drugs. For one thing, ADHD is a much more narrow diagnosis than pain (the latter being something every si

Amphetamines and opioids are very different classes of drugs. For one thing, ADHD is a much more narrow diagnosis than pain (the latter being something every single human experiences), for another amphetamine sulphate has been available as a generic for a long time so there’s much less incentive for a company like Purdue/Insys to lie/cheat/bribe doctors en masse in the same way.