Posted 19 April 2011 - 11:45 PM
VoidPointer summed it up pretty nicely. I'd add that modafinil also doesn't present the psychological problems inherent to the more potent DA/NE psychostims (feels much more "transparent," while still serving much the same function). TBH I haven't looked into the cardiac implications of any of these yet, so I can't comment on that aspect.
As for non-stims, I'd also agree that strattera and wellbutrin are hit-or-miss, and will probably have other emotional effects that you might not be looking for. I have a similar bias for being able to take something "as needed," and not having to wait a month for it to work, and get a migraine if I miss a dose (my experience with wellbutrin).
Another fairly recent addition to the options is guanfacine, a blood pressure med that's been around since the 70s. It's an alpha-2 agonist that's been shown to enhance cognition even in healthy people...from the studies and anecdotal reports (see ADDforums), it seems indicated more for hyperactivity than inattentiveness/motivation, though some still find it helpful. It starts working immediately, but reaches peak effectiveness sometime in 1-2 weeks. I was prescribed this recently, but haven't started taking it yet.
Finally, the nootropics we discuss here are applicable to the treatment of motivation, attention, energy, etc. as well. It will most likely require much more experimentation and adjustment to find something that works, but every little bit helps ^_^