This book exposes the traditional view that psychiatric drugs correct chemical imbalances as a dangerous fraud. It traces the emergence of this view and the way it supported the vested interests of the psychiatric profession, the pharmaceutical industry and the modern state. Instead it is proposed that psychiatric drugs 'work' by creating abnormal brain states, which are often unpleasant and impair normal intellectual and emotional functions along with other harmful consequences. Research on antipsychotics, antidepressants and mood stabilisers is examined to demonstrate this thesis and it is suggested that acknowledging the real nature of psychiatric drugs would lead to a more democratic practice of psychiatry.