The ACT has a huge list: http://www.act.org/content/act/en/products-and-services/the-...

> but not lower IQ

It's always great when people compare learning disabilities to being dumb.

> performance enhancing drugs

I realize that it's easy to look at how stimulants affect people without ADHD and conclude that they're getting the same advantage but this really isn't true. A non-ADHD med example is caffeine. Most people who down a few coffees or energy drinks will be wide awake and jittery. But for me I'll be hyper and bouncing off the walls and spacing out until I have an energy drink which lets me focus a little bit and makes me sleepy.