Scientifically and clinically inaccurate, sorry. I’ve personally lived one of many counterexamples to what you describe, even though my ADHD is both quite clear

Scientifically and clinically inaccurate, sorry. I’ve personally lived one of many counterexamples to what you describe, even though my ADHD is both quite clear and professionally diagnosed. Amphetamines have a complicated mixture of effects on me that’s often not positive overall. My current psychiatrist knows ADHD quite well, and she and I found a better non-amphetamine medication solution for me. There are multiple common medications approved to treat ADHD which are not amphetamines, and for some people those are the best option. Whenever possible, always discuss this topic with a suitably qualified and informed doctor instead of self-medicating (or self-diagnosing).