I can definitely see how there could be some overlap, although I've never actually had nicotine sober. Still, seems hard to believe it could be as effective for significant ADHD considering the standard suite of amphetamines is a bazooka by comparison.

Still, the symptoms that get grouped together as ADHD are so diverse that I could see it helping people. Biggest issue is probably relative addictiveness, since after 15 years of adderall use I feel absolutely no desire to take it on weekends or vacation, and that's probably not totally the same for nicotine.

Not the op, but nicotine seems to reduce my tendency to be involuntarily distracted at random noises and other stimuli. However, I don't have a diagnosed ADHD (never bothered to, I have only very mild signs of it).