Dual-diagnosis care
Schizophrenia and Addiction Treatment
Substance use makes schizophrenia harder to treat — and more dangerous. Integrated dual-diagnosis care treats both conditions at once.
About this condition
Schizophrenia and addiction
Schizophrenia is a severe mental disorder that affects thoughts, feelings, and behavior. People with schizophrenia can have difficulty distinguishing thoughts and imagination from reality, with symptoms like hallucinations, delusions, disorganized thinking and speech, and reduced emotion and motivation. It typically develops in the late teens or early adulthood and requires lifelong treatment.
The onset of schizophrenia is a deeply stressful time, and without good information many people turn to drugs and alcohol to cope. That leads to bigger problems: earlier presentation of psychotic symptoms, induced psychotic relapse, and greater severity. People with co-occurring schizophrenia and substance use disorders experience more cognitive impairment, more intense psychosis, and higher rates of emergency care and legal trouble — which is why the two conditions are treated together.
Schizophrenia and addiction treatment is available through Ambrosia Behavioral Health’s programs in West Palm Beach, Port St. Lucie, and Singer Island, Florida, where psychiatric care and addiction treatment run on one plan.
Signs and symptoms of schizophrenia
Symptoms fall into three categories: positive symptoms distort your perception of reality, negative symptoms diminish normal functioning, and cognitive symptoms affect thought, memory, and attention. The most common include:
- Hallucinations — seeing, hearing, or sensing things that are not there
- Delusions — fixed beliefs not based in reality, such as paranoia or grandeur
- Disorganized speech and difficulty communicating logically
- Disorganized or unpredictable behavior
- Flattened or inappropriate emotions
- Loss of motivation for daily activities
- Social withdrawal and difficulty maintaining relationships
- Trouble concentrating and following instructions
- Difficulty remembering and learning new things
- Trouble planning, deciding, and solving problems
Why schizophrenia and addiction co-occur
Genetic factors
Certain genes may raise the risk of both conditions, or heighten sensitivity to the effects of substances.
Environmental factors
Stressful or traumatic events can worsen schizophrenia symptoms and push people toward substances as a coping mechanism.
Brain chemistry
Imbalances in dopamine, serotonin, or glutamate are implicated in both schizophrenia and addiction.
Self-medication
Substances get used in an attempt to escape hallucinations, delusions, or negative emotions — but they aggravate psychotic symptoms and interfere with medication.
Recreational use
Curiosity or social pressure leads to use, and people with schizophrenia are more vulnerable to developing an addiction from it.
How substances affect schizophrenia
Alcohol use disorder is the most common dual diagnosis with schizophrenia, affecting roughly 1 in 4 adults with the condition. Alcohol worsens or triggers psychotic symptoms, interferes with antipsychotic medication, and increases the risk of depression, suicide, homelessness, and hospitalization. If thoughts of suicide are present, call or text the 988 Suicide & Crisis Lifeline immediately.
Marijuana can cause hallucinations and delusions and may trigger or worsen schizophrenia in vulnerable people. Stimulants such as cocaine and methamphetamine intensify positive symptoms like delusions and disorganized thinking, blunt the effectiveness of antipsychotic medication, and deepen negative symptoms like social withdrawal. Using any illicit substance makes treating both disorders harder and raises the risk of hospitalization or death.
How schizophrenia and addiction are treated
- Medications
Antipsychotics reduce hallucinations, delusions, and disorganized thinking, while medications like methadone, buprenorphine, and naltrexone manage withdrawal and cravings.
- Psychotherapy
Talk therapy — CBT, motivational interviewing, and family therapy — builds understanding of both conditions and healthier coping skills.
Recovery education
Psychoeducation and relapse prevention teach how substances affect the brain and body and what recovery makes possible.
- Self-help groups
AA, NA, and Schizophrenics Anonymous offer peer support, mutual aid, and social connection with people facing the same conditions.
Ready to talk with admissions?
Admissions is available 24/7 to answer questions about mental health and substance use treatment options.