... the benefits of such a drug. I mean, dopamine antagonists can have serious side-effects. The reason they were prescribed for schizophrenics is, so the legend goes, that they were given to "guinea pigs," who stopped chittering when they were dosed with thorazine. So, the reasoning was, the problem with schizophrenics is the chittering, or the behavior, and by giving them doapmine antagonists, they could reduce chittering/behavior and therefore effect a "cure."

The problem is, this simply masks the symptom, and, as you point out, makes it difficult to do _anything_ because you have no functioning reward mechanism. You could argue that addiction already damaged your reward mechanism, but this seems like robbing Peter to pay Paul in some sense.

What is the root of addiction? I could go buy cocaine and amphetamine, but I don't, so what is different about us?