adhd
"Mine may be a somewhat rarer case of ADHD, that is very severe, and my response to amphetamines is almost perfectly paradoxical for the best known effects.  I sleep better and longer with significant blood concentration (it's neutral for going to sleep, but keeps me asleep longer), have better appetite, cannot achieve euphoria or a "high" from amphetamines, only a mild feeling of extra energy.

For me adderall is far less effective than single ingredient D-isomer formulations.  Best guess is that the L-isomer is what ruins it for my condition or perhaps the more exotic salts.  Vyvanse, Desoxyn, Dexedrine are much more effective and without side-effects for me.  Didn't expect the difference, but adderall doesn't work well with my brain chem."