I know that this is a bit of a back quote, but I beg to differ.
I was recently diagnosed with ADHD and prescribed amphetamines. Immediately I noticed a difference. Before, I was unable to concentrate on even things I like doing. But after beginning the drug, I could. It's really helped me so far, and I expect it do to so next year. ADHD may be misdiagnosed often, but I believe it is a real condition.
Well it's possible that yeah, it's a condition, (which I honestly will never believe, since medical science in the 1500s believed that cutting wrists and allowing people to bleed their illness out was top of the line and tomatoes were poisonous) but I hardly doubt using illegally controlled substances to cure it is plain stupid. Amphetamines is downright meth in pills, so while it may calm you some, there's a massive risk for an addiction you may never break. You might as well just take some energy drink and be able to do the same thing.