I'm a psychiatry resident, and I have ADHD. The myth is, in fact, a myth.

More importantly, the dose of desoxyn (methamphetamine) used therapeutically for ADHD is *much* lower than what's consumed recreationally. That's really it. Use low doses, as prescribed, and the risks are minimal/comparable to most alternative stimulants.

It's like asking why a society where everyone has cups of tea twice a day has a different relationship to caffeine than a frat house where they're drinking 3 cans of Red Bull a night.