Thank you Gyanofskyfor inquiring about the effects of smoking pot by people who have ADHD. This is a very pertinent question. I haven't ever read, or found, where a legitimate scientific study has ever been completed on the effects of individuals smoking pot with ADHD. Although there have been studies completed on long term use of marijuana by the general public. I can only offer you personal data on my former use, personal observations that I have made over the past forty years and antidotal evidence that I have collected.
Personal Data: I started smoking pot, forty years ago, at age fifteen. I started smoking only on weekends and progressed to where not having a buzz, whether awake or sleeping was abnormal. I found that after a while pot just wasn't getting it any more. It didn't matter how good it was or how much I smoked, it just made me tired and instead of wanting to party....I just wanted to take a nap. That was when I found "uppers" and my love affair with speed and mescaline started and lasted until I was twenty five. We didn't know anything about ADHD at that time. ADHD wasn't acknowledged yet and of course there wasn't any medication for it. Those of us that had ADHD turned to self medicating along with every one else.
I never was officially addicted but if we are honest with ourselves, what is addiction if it isn't finding out that you are out of pot and you know, you just want to smoke one, and you call a friend or two and they don't have any and before long you find yourself on a twenty or thirty minute drive just to smoke one?
Why I quit? The realization one day or what I called an epiphany, that all of it.....pot, drugs and life style had become "not fun." It becomes a job wanting to get high all the time and you forget where you stuck your bag of dope and you know, it becomes a drag. So I walked away from all of it. I couldn't believe it, after a few weeks I could remember better, wasn't living in a fog anymore and I wasn't as lazy as I had been.
Observations and Antidotal evidence collected: I have friends that have been smoking dope for forty years. There isn't any one left alive who did coke, acid, pills, heroin and the like that didn't quit. I know of no one that has lived, that abused and continued to abuse heavy drugs. Some people I know smoke daily, some only on weekends, some only smoke, while others smoke and drink. No matter how they smoke it or smoke it with, they all have to some degree, diminished mental capabilities. Short term memory gone, wasted opportunities through out their life, premature aging, relational issues, laziness, stuck in a time warp, health problems and the list can go on and on. Most have earned substantial less in income, over the years than what they could have by not having continued smoking pot.
Bottom line.... Long term pot smoking for the general public has been found to be devastating to ones life, how much more for those of us who have ADHD and start out with memory issues, relational issues and the like. We only have one brain and one life....please, make the best use of it.