I've seen people with ADD/ADHD go from basically non-functional to brilliant and together from a very modest dose of amphetamine or something similar. You don'

I've seen people with ADD/ADHD go from basically non-functional to brilliant and together from a very modest dose of amphetamine or something similar. You don't see the same gains in people without these conditions though. It's certainly not a wonder drug for productivity or executive function in people without a condition.