Psychiatry's faulty science because it treats the brain like any other organ of the body. Thoughts are intangible electrical impulses, so treating the organ responsible like the heart or other organ is turning something we haven't the foggiest idea about like something we do. Plus, since disorders can't be diagnosed as surely as physical maladies (excluding neural disorders that show up on MRI scans et al.) treatments are basicaly: proscribe and try one thing after another until the desire effect is observed. Trouble with this is if I whack someone in the head with a hammer, I'll see a desired effect too, but get a lot of undesired effects as well.

Until we get Star Trek medical tricorders, except in the most severe cases where the patient or genetral public's health is in immediate jeopardy, we should refrain from messing around with brain chemistry.
"I'd rather be hated for who I am, than loved for who I pretended to be." - Me.