For most of recorded history, schizophrenia was not recognized as a distinct illness, and the treatments applied to people experiencing psychotic symptoms ranged from herbal remedies and temple rituals to confinement, induced fevers, and brain surgery. Even after the condition was formally named in the early twentieth century, decades of experimental and sometimes brutal interventions passed before anything resembling effective medication arrived. The story of how schizophrenia was treated is, in many ways, a story about how societies understood the mind itself and what they were willing to do when it broke down.
Ancient and Classical Approaches
In most ancient civilizations, psychotic behavior was attributed to supernatural causes: possession by spirits, divine punishment, or curses. Treatment typically meant appealing to the gods through prayer, ritual sacrifice, or exorcism. Ancient Egyptian papyri describe herbal preparations and incantations for people who heard voices or behaved erratically, but these were framed as spiritual interventions, not medical ones.
The Greek physician Hippocrates marked a genuine turning point. He argued that mental illnesses were caused by natural factors and should be treated like any other disease, with the brain identified as the organ responsible for psychological disturbances.1PubMed Central. Health care practices in ancient Greece: The Hippocratic ideal Hippocratic physicians prescribed changes in diet, bathing, exercise, and rest for patients with symptoms we would now associate with psychosis. They also used music and art as therapeutic tools. This naturalistic framework was remarkable for its era, though it coexisted with spiritual explanations for centuries afterward and did not dominate medical thinking for long.
In the medieval Islamic world, a parallel tradition of humane care emerged. Physicians in Al-Andalus (Muslim-ruled Spain) and elsewhere in the Islamic empire established institutions called maristanes, which were dedicated mental health hospitals offering patient-centered, compassionate treatment. These facilities predated European psychiatric institutions by centuries and influenced the later development of Western approaches to mental illness.2PubMed Central. A Historical Review on the Andalusian Physicians and the Treatment of Mental Health Care in maristanes included diet, baths, music therapy, and structured activity, delivered without the chains and dungeons that characterized many European responses to madness during the same period.
The Asylum Era and Moral Treatment
By the seventeenth and eighteenth centuries, people with severe mental illness in Europe were increasingly confined in institutions. Some of these, like London’s Bethlem Royal Hospital (popularly known as “Bedlam”), became notorious for overcrowding and neglect. Patients were often restrained with chains, kept in filthy conditions, and sometimes displayed to paying visitors as a form of entertainment. Treatment, such as it was, consisted of bloodletting, purging, cold baths, and restraint, all based on the idea that extreme physical interventions could shock a disordered mind back to health.
In the late eighteenth century, reformers pushed back. The “moral treatment” movement, championed by figures like Philippe Pinel in France and the Tuke family in England, argued that people with mental illness should be treated with kindness and dignity. Asylums built on moral treatment principles offered structured routines, fresh air, meaningful activity, and limited use of physical restraint. Work therapy became a prominent feature of psychiatric institutions across the world from the late eighteenth century onward and eventually gave rise to the professional field of occupational therapy.3PubMed Central. The role of work in psychiatry: Historical reflections
Moral treatment represented genuine progress, but it had limits. As asylum populations swelled through the nineteenth century, the individualized care the model demanded became impossible to sustain. Institutions grew into massive custodial warehouses housing hundreds or thousands of patients, and the original reformist ideals were buried under chronic underfunding and overcrowding. By the turn of the twentieth century, most people with severe psychotic illness were simply confined indefinitely with little hope of discharge.
Naming the Disease
Before doctors could develop targeted treatments for schizophrenia, they had to recognize it as a specific condition. The German psychiatrist Emil Kraepelin took the critical first step in 1899 when he separated what he called “dementia praecox” (early dementia) from manic-depressive illness. This division created the foundation of modern psychiatric classification and dominated thinking for much of the twentieth century.4PubMed Central. Emil Kraepelin: A pioneer of scientific understanding of psychiatry and psychopharmacology Kraepelin viewed dementia praecox as a progressive, degenerative brain disease with a poor prognosis, which encouraged a pessimistic, custodial approach to care.
The Swiss psychiatrist Eugen Bleuler challenged that pessimism in 1908 when he coined the term “schizophrenia,” replacing Kraepelin’s label. Bleuler recognized that the illness did not always begin in young adulthood, was not always progressive, and did not invariably lead to dementia. He shifted the focus from deterioration to what he saw as the core feature: a splitting of psychological functions, where thought, emotion, and behavior became disconnected from each other.5PubMed Central. Paul Eugen Bleuler and the origin of the term schizophrenia (SCHIZOPRENIEGRUPPE) Bleuler’s reframing opened the door to the idea that schizophrenia could be treated rather than merely managed, though effective therapies were still decades away.
Fever Therapy and Induced Illness
The early twentieth century saw a wave of somatic (body-based) therapies that would strike most people today as extreme. The first to gain international prestige was malaria fever therapy. In 1917, the Austrian psychiatrist Julius Wagner-Jauregg deliberately infected patients with malaria to induce high fevers, initially to treat general paralysis of the insane (a late stage of syphilis that caused psychotic symptoms). The treatment appeared to work well enough for syphilitic psychosis that Wagner-Jauregg received the Nobel Prize in 1927, and the technique spread worldwide.6PubMed. Malaria Fever Therapy for General Paralysis of the Insane: A Historical Cohort Study
Physicians soon extended the rationale to schizophrenia, reasoning that if artificially induced fever helped one form of psychosis, it might help others. At the Department of Psychiatry in Vienna, more than 300 patients with schizophrenia or neurosyphilis underwent malaria fever therapy between 1951 and 1969. Patients were injected intravenously with malaria-infected blood and allowed to endure an average of five to six fever spikes before receiving antimalarial drugs to end the infection.7PubMed Central. Clinical and Parasitological Characteristics of Plasmodium vivax Malaria in Malaria-Naïve Patients: A Review of Malaria Fever Therapy in Patients with Schizophrenia and Neurosyphilis during the 1950s and 1960s in Vienna, Austria The logic was thin, the risks were real, and the evidence for benefit in schizophrenia was never strong. But in an era with no effective medications, the mere appearance of active treatment held enormous appeal for both doctors and desperate families.
Insulin Coma, Chemical Convulsions, and Electroshock
The 1930s brought three more somatic therapies that would define institutional psychiatry for the next two decades. The first was insulin coma therapy, introduced by the Austrian physician Manfred Sakel. Patients were injected with large doses of insulin to induce a hypoglycemic coma, then revived with sugar solutions. The treatment was physically grueling and dangerous, requiring constant nursing supervision. From the time of its introduction, there was considerable debate about whether it actually worked, and skeptics raised doubts about the quality of the evidence behind it.8PubMed Central. ‘A landmark in psychiatric progress’? The role of evidence in the rise and fall of insulin coma therapy Randomized trials in the 1950s eventually confirmed those doubts, and insulin coma therapy was abandoned. Even so, the psychiatric profession still looked back on it as a stepping stone in the modernization of the field, a perception the historical evidence does not fully support.
Around the same time, the Hungarian physician Ladislas Meduna introduced convulsive therapy based on the observation that epilepsy and schizophrenia rarely seemed to occur in the same person. He used a chemical called Metrazol (pentylenetetrazol) to trigger seizures, reasoning that the convulsions might counteract schizophrenic symptoms.9Archives of Neurology & Psychiatry. METRAZOL SHOCK TREATMENT OF THE “FUNCTIONAL” PSYCHOSES The injections produced violent, uncontrollable seizures that terrified patients, sometimes causing bone fractures and spinal injuries. Metrazol therapy was widely used but quickly acquired a reputation as one of the most feared procedures in psychiatry.
In 1938, the Italian physicians Ugo Cerletti and Lucio Bini replaced the chemical approach with electricity, creating electroconvulsive therapy (ECT).10PubMed Central. Ugo Cerletti, Pathologica and electroconvulsive therapy ECT proved safer and more controllable than Metrazol and rapidly replaced chemical convulsions. It was used extensively for schizophrenia through the 1940s and 1950s, though its effectiveness for schizophrenia specifically turned out to be modest compared to its genuine benefits for severe depression. Modern ECT, performed under anesthesia with muscle relaxants, bears little resemblance to the early unmodified version, but its origins in the treatment of schizophrenia left a lasting cultural mark on how the public perceives both the procedure and the disease.
Lobotomy and the Peak of Psychosurgery
The most infamous chapter in the history of schizophrenia treatment is psychosurgery. In 1936, the Portuguese neurologist Egas Moniz introduced the prefrontal leucotomy, a procedure that severed nerve tracts in the frontal lobes of the brain. The rationale was that disrupting these connections would calm severely agitated or psychotic patients.11PubMed. Egas Moniz and the origins of psychosurgery: a review commemorating the 50th anniversary of Moniz’s Nobel Prize Moniz received the Nobel Prize for this work in 1949, a decision that remains deeply controversial.
The procedure became widespread in the United States largely through the work of Walter Freeman, who developed the transorbital lobotomy, a simplified version that could be performed in minutes using an ice-pick-like instrument inserted through the eye socket. Thousands of institutionalized patients, many of them diagnosed with schizophrenia, underwent lobotomies in the 1940s and early 1950s. The side effects were devastating. Patients frequently emerged apathetic, emotionally blunted, and cognitively impaired. Some were left in a permanent vegetative state. Deaths on the operating table were not uncommon. The procedure was applied to thousands of psychotic patients before antipsychotic drugs offered a less destructive alternative, and it was largely abandoned by the mid-1950s.11PubMed. Egas Moniz and the origins of psychosurgery: a review commemorating the 50th anniversary of Moniz’s Nobel Prize Psychosurgery and its practitioners fell rapidly into disrepute once medications became available.
The Chlorpromazine Revolution
The single most important turning point in the history of schizophrenia treatment came in 1952 with the introduction of chlorpromazine (marketed as Thorazine in the United States and Largactil in Europe). The drug was synthesized in the laboratories of the French pharmaceutical company Rhône-Poulenc and was initially explored for its sedative properties in surgery.12PubMed Central. Fifty years chlorpromazine: a historical perspective French psychiatrists Jean Delay and Pierre Deniker at Sainte-Anne Hospital in Paris were among the first to demonstrate that it did something no previous treatment had accomplished: it reduced hallucinations, delusions, and disordered thinking without simply sedating the patient into unconsciousness.13PubMed. History of the discovery and clinical introduction of chlorpromazine
Chlorpromazine’s impact on psychiatry was seismic. For the first time, patients who had been confined to back wards for years became calm enough to hold conversations, participate in activities, and in some cases leave the hospital. The drug did not cure schizophrenia, but it made symptoms manageable for many people. A wave of similar drugs, collectively called neuroleptics or typical (first-generation) antipsychotics, followed in the late 1950s and 1960s. Haloperidol, fluphenazine, and others offered variations in potency and duration but worked through the same basic mechanism: blocking dopamine receptors in the brain.
The trade-off, however, was significant. First-generation antipsychotics frequently caused movement disorders known as extrapyramidal symptoms. These included drug-induced parkinsonism (tremor, rigidity, slowed movement), akathisia (an unbearable inner restlessness), and tardive dyskinesia (involuntary repetitive movements, especially of the face and tongue). A large meta-analysis of observational studies found that roughly one in five patients on antipsychotics developed parkinsonism, about one in nine developed akathisia, and about one in fourteen developed tardive dyskinesia.14PubMed Central. Antipsychotic-induced extrapyramidal side effects: A systematic review and meta-analysis of observational studies These side effects were not just uncomfortable; they were often disfiguring and sometimes irreversible, and they represented the main factor limiting the use of these otherwise effective drugs.15Schizophrenia Research. Neuroleptic drug-induced extrapyramidal syndromes and tardive dyskinesia
Deinstitutionalization and Its Consequences
The availability of antipsychotic medication coincided with a political and social movement to close large psychiatric institutions and shift care into the community. In the United States, this process unfolded in overlapping waves across the twentieth century. The moral treatment era of the early 1800s gave way to a mental hygiene movement that introduced psychiatric hospitals and outpatient clinics, followed by a community mental health reform period after World War II that established community mental health centers. None of these approaches succeeded in preventing long-term disability from psychotic illness.16PubMed Central. Cycles of reform in the history of psychosis treatment in the United States
By the 1970s, the focus shifted toward supporting people already living with severe mental illness in community settings. State hospitals closed by the hundreds, and their populations dropped dramatically. In theory, community-based care would offer patients freedom, dignity, and better lives. In practice, the promised community resources often did not materialize. Many people discharged from institutions ended up homeless, incarcerated, or cycling through emergency rooms. Deinstitutionalization is now widely recognized as a well-intentioned reform that was implemented poorly, leaving a gap in care that many countries have still not adequately filled.
Blaming the Family
While somatic treatments dominated one side of mid-century psychiatry, a parallel psychological tradition did real damage of its own. From the late 1940s to the early 1970s, the concept of the “schizophrenogenic mother” was widely embraced in psychiatric literature. The theory held that cold, domineering, or emotionally inconsistent mothering could cause schizophrenia in a child. Psychoanalytically oriented therapists spent years in sessions probing family dynamics, and mothers bore enormous guilt and stigma as a result.17PubMed. Whatever became of the schizophrenogenic mother?
Research eventually demonstrated that no parenting style could cause schizophrenia. The concept had no basis in scientific fact and caused tremendous harm to families already struggling with a devastating diagnosis. Its legacy persists in the lingering tendency to search for someone to blame when a person develops a psychotic illness. Modern understanding recognizes schizophrenia as a brain disorder with strong genetic and neurobiological underpinnings, though environmental stressors can influence when and whether symptoms emerge in someone who is already vulnerable.
Clozapine and the Second Generation
The limitations and side effects of first-generation antipsychotics drove the search for something better. The breakthrough came with clozapine, a drug that challenged the prevailing assumption that movement side effects were an unavoidable part of antipsychotic action. Clozapine was the first “atypical” antipsychotic, effective against both the positive symptoms of schizophrenia (hallucinations, delusions) and the negative symptoms (emotional withdrawal, lack of motivation) that older drugs barely touched.18PubMed. A historical perspective of clozapine
Clozapine’s path to widespread use was rocky. It was partially withdrawn from markets after reports that it could cause agranulocytosis, a dangerous drop in white blood cells that left patients vulnerable to life-threatening infections. Pressure from clinicians who had seen dramatic improvements in previously treatment-resistant patients eventually led to its reintroduction, with mandatory blood monitoring. To this day, clozapine remains the only antipsychotic with clear evidence of superiority for treatment-resistant schizophrenia, and it is widely regarded as one of the most important drugs in psychiatric history, despite the burden of regular blood tests that its use requires.
Clozapine paved the way for a string of second-generation antipsychotics introduced in the 1990s and 2000s, including risperidone, olanzapine, quetiapine, and aripiprazole. These newer drugs generally cause fewer movement disorders than the older medications, though they brought their own set of problems: weight gain, metabolic syndrome, and increased risk of diabetes became common concerns. The hope that second-generation drugs would be categorically superior to the first generation has been tempered over time by large effectiveness trials showing more modest differences than the initial marketing implied.
Treatments That History Has Quietly Buried
Beyond the major therapies that make it into textbooks, psychiatry’s past is littered with smaller interventions that were tried, promoted, and abandoned. Prolonged sleep therapy, where patients were kept sedated for days or weeks at a time with barbiturates, was used in some hospitals through the mid-twentieth century. Hydrotherapy, involving prolonged immersion in warm or cold water, was once a staple of institutional treatment. Teeth and organ removal based on the “focal infection” theory, which held that hidden infections in teeth, tonsils, or the colon were the root cause of psychosis, led to unnecessary surgeries on countless patients in the early 1900s. Forced sterilization, driven by eugenics ideology rather than any treatment rationale, was performed on tens of thousands of institutionalized patients across North America and Europe.
What these forgotten treatments share is a pattern: each was introduced with genuine enthusiasm by physicians who believed they were helping, each rested on a biological theory that seemed plausible at the time, and each was abandoned only after causing considerable suffering. The pattern has made historians and ethicists cautious about assuming that current treatments represent the final word. Every generation of psychiatrists has been confident in its methods, and every generation has eventually been proven at least partly wrong.
How Non-Western Traditions Approached Psychosis
The history of schizophrenia treatment is usually told through a European and North American lens, but people have experienced psychotic symptoms everywhere, and cultures around the world developed their own responses. Traditional Chinese medicine, which remains widely practiced today, treats conditions overlapping with psychosis using herbal formulas, acupuncture, and dietary interventions based on theories of energy balance (qi) and organ harmony. In parts of Africa, traditional healers have long used a combination of herbal preparations, ritual, and community involvement to address psychotic symptoms, often with a focus on reintegrating the person into social life rather than isolating them. Indigenous communities in the Americas, Australia, and the Pacific Islands similarly developed responses that centered on spiritual interpretation and communal support.
These approaches were not inherently gentler or more effective than Western medicine. Some involved coercive restraint, harsh physical remedies, or social exile for people whose behavior was too disruptive. But many non-Western traditions placed a greater emphasis on keeping the person connected to family and community, an approach that modern psychiatric rehabilitation is now rediscovering as central to recovery. The fact that community integration and social support have become pillars of twenty-first-century psychosis treatment is, in a roundabout way, a return to principles that some traditional systems never abandoned.