[hnick]

I can't find it right now but I recall seeing somewhere that around 40% of ADHD patients reported better effects on Ritalin (methylphenidate) or dexamphetamine roughly equally, another 40% says both are about as good as each other, and the final 20% don't find either very effective.

In my personal testing the Ritalin was much better, dexamphetamine was more up/down and shorter lived. However I didn't really get a crash or lethargy with either, it's just the focus wearing thin (and yes, the benefits were real and massive starting for the first time in my forties).

According to my psych, both have been around 70+ years and are fairly well understood. Longer term therapeutic doses shouldn't be habit forming and tolerance is minor after the initial phase, there's no withdrawal effects and it's easy to forget to take a dose if your routine changes. My morning coffee is far more demanding in that regard.