From back cover:

“…biopsychiatric theory and research resulted in a tidal wave of sales for the makers of Thorazine®, the first neuroleptic drug (meaning lobotomizing or brain-disabling drug – modern biopsychiatrists prefer to call this class of drug “antipsychotic”) and the increasing number of drugs like it. These companies, in turn, funded such research, for money invested in biopsychiatry was virtually guaranteed to result in ever-growing sales of psychiatric drugs. Drugs for depression, mania, and other “mental illnesses” followed; each made a fortune for the company marketing it; and those companies funded further research in biopsychiatry. This unholy alliance between corporations and scientists continues to the present day, giving us drugs for everything from nervousness to PMS to kids that are difficult to manage. No other medical specialty is underwritten by the drug industry to a degree even vaguely approaching that of psychiatry. And with each new drug brought to market for some condition, the list of types of consciousness that are deprecated as “mental illness” grows.

…The hypothetical disturbances of neurochemical function that are said to underlie “mental illness” are just that: hypothetical. No experiment has ever shown that anyone has an “imbalance” of any neurotransmitters or any other brain chemicals. Nor could any conceivable experiment demonstrate the existence of a “chemical imbalance,” simply because no one, least of all the biopsychiatrists, has the slightest idea what a proper and healthy chemical “balance” would look like.”

There Are No Chemical Imbalances_ Exposing the Profit Motive Behind Psychiatry and the Myth of the “Chemical Imbalance” Theory pdf