When someone experiences psychosis – hallucinations, delusions, or a break from reality – it can be scary, confusing, and overwhelming. Add substance use to the picture, and it’s easy to feel unsure of what’s going on. A common question families and individuals ask is, “Did the drugs cause this, or was something already there?”
The truth is, substance use and psychosis can be deeply related. Understanding how they connect can help reduce stigma, clear up confusion, and point people toward the right kind of support—especially in those critical, early stages of illness.
What Is Psychosis?
Psychosis isn’t a diagnosis on its own. It’s a symptom that shows up when someone loses touch with reality. This can look like:
- Hallucinations – seeing or hearing things that aren’t there
- Delusions – strong beliefs that aren’t based in reality
- Disorganized thoughts or speech – conversations that don’t quite make sense or feel jumbled
Psychosis can be part of conditions like schizophrenia, bipolar disorder, or major depression—but it can also be triggered or worsened by substance use.
How Can Substance Use Affect Psychosis?
Substances can influence psychosis in a few different ways:
1. They can trigger it.
Some people may go through a first episode of psychosis after using certain substances. This is more likely if there’s a family history of mental illness or other risk factors present. Substances like cannabis, hallucinogens, methamphetamines, or stimulants can act as a catalyst, especially during vulnerable developmental periods like the teens and early 20s.
2. They can mimic or worsen symptoms.
Even when someone doesn’t have an underlying psychotic disorder, some substances—especially in high doses—can cause paranoia, hallucinations, or disorganized thinking. This is called substance-induced psychosis. It usually fades once the substance leaves the body, but for some, it lingers longer.
For those with an existing diagnosis, substances can make symptoms more intense or harder to manage. And the brain may take longer to recover from an episode if substance use is part of the picture.
3. They might be used to cope.
It’s also common for a person to turn to substances because they’re trying to manage early symptoms—like anxiety, sleeplessness, racing thoughts, or distressing internal experiences. Unfortunately, while this might bring short-term relief, it often leads to more challenges over time. What starts as a coping mechanism can become part of the problem.
Which Substances Are Most Commonly Linked to Psychosis?
Let’s break it down:
- Cannabis: Research shows a strong link between high-potency cannabis and increased risk of psychosis—especially in teens and young adults with other risk factors.
- Stimulants: Cocaine and methamphetamines are strongly associated with psychosis, particularly paranoid thinking and hallucinations.
- Hallucinogens: Substances like LSD, PCP, or psilocybin can lead to temporary psychotic symptoms—and in some cases, long-lasting effects.
- Alcohol and prescription medications: Withdrawal from alcohol or benzodiazepines (like Xanax) can sometimes cause psychotic symptoms. Misuse of medications like Adderall or steroids can also play a role.
Is It Substance-Induced Psychosis or a Psychotic Disorder?
Here’s where things get confusing.
Sometimes, symptoms clear up once the substance is out of the system. That points to substance-induced psychosis. But if symptoms stick around—or if there were warning signs even before the substance use—it could be a primary psychotic disorder like schizophrenia or schizoaffective disorder.
The reality is that there’s a lot of overlap. And sometimes what starts as a substance-induced episode can evolve into something more enduring. That’s why getting help early, even if things feel uncertain, is so important.
Why Early, Integrated Care Makes All the Difference
When someone is navigating both psychosis and substance use, they deserve support that doesn’t force them to choose which one to treat first.
Programs that offer integrated care—where mental health and substance use are addressed together—tend to have better outcomes. It’s not just about reducing symptoms; it’s about helping people rebuild a life that feels worth living.
Coordinated Specialty Care (CSC) programs for First Episode Psychosis often include:
- Medication support
- Individual and family therapy
- Case management
- Education
- Substance use counseling
That holistic approach helps people heal, not just cope.
What Families and Supporters Should Know
- Try not to blame – Substance use is often an attempt to feel better, not a sign of weakness or irresponsibility.
- Get support early – The sooner someone connects to the right kind of care, the better their chances for recovery.
- Stay hopeful – With the right treatment, people do recover from both psychosis and substance use. Healing isn’t linear, but it is possible.
Final Thoughts
Substance use doesn’t always cause psychosis—but for some people, it can uncover, trigger, or worsen symptoms. The connection is complex and deeply personal. What matters most is recognizing when something’s not right and getting the right support as soon as possible.
If you or someone you love is dealing with psychosis and also struggling with substance use, you’re not alone—and you don’t have to figure it out alone either. Help is available, and healing is possible.
Raising awareness and understanding of first episode psychosis can help reduce stigma and encourage early intervention, leading to better outcomes for those affected. If you or someone you know is experiencing symptoms of psychosis, visit the Get Help page of the Quiet Minds website.
Sources
Psychiatric Times. (2020). “8 Distinguishing Features of Primary Psychosis Versus Cannabis-Induced Psychosis.” Retrieved from https://www.psychiatrictimes.com/view/8-distinguishing-features-primary-psychosis-versus-cannabis-induced-psychosis
The British Journal of Psychiatry. (2021). “Stimulant Psychosis: Systematic Review.” Retrieved from https://www.cambridge.org/core/journals/the-british-journal-of-psychiatry/article/stimulant-psychosis-systematic-review/8302A2C65E25AEF91CAF363FA39AE0F3
MDPI. (2022). “Substance-Induced Psychosis: Diagnostic Challenges and Clinical Implications.” Retrieved from https://www.mdpi.com/2673-5318/5/4/52
Verywell Health. (2021). “Signs of Drug-Induced Schizophrenia and Treatment Options.” Retrieved from https://www.verywellhealth.com/drug-induced-schizophrenia-5198685