image of a man amidst smoke struggling with cannabis induced psychosis

What is Cannabis-Induced Psychosis?

Across the country, more young adults are experiencing serious mental health symptoms linked to heavy cannabis use. For many, what starts as casual or social use can quickly become something far more alarming. Sudden paranoia, disorganized thoughts, or even a break from reality can come seemingly out of nowhere.

If you or your loved one is showing signs of cannabis-induced psychosis, it can be frightening and confusing. As access to marijuana grows and today’s products become far more potent than in the past, cases of cannabis-related psychosis have increased significantly [1].

Mental Health Risks Associated with Cannabis Use

While smoking marijuana may seem harmless or even enjoyable for some, it’s essential to recognize that it can pose risks to mental health. There has been a noticeable rise in emergency department visits by young people experiencing severe psychiatric symptoms after using marijuana excessively. The symptoms associated with drug-induced psychosis can include hallucinations (seeing or hearing things that aren’t there) and delusions (believing things that are not based on reality). 

It’s crucial to recognize the emerging challenges tied to cannabis use, particularly in young people seeking recovery. The rise of cannabis-induced psychosis underscores the need for mental health providers to actively engage in educating families. As states legalize cannabis, addressing this issue becomes imperative to prevent it from escalating into a broader mental health crisis.

— Sebastian Martin, Executive Director of Operations

Related: Understanding the Link Between Mental Health and Addiction

What is cannabis-induced psychosis?

Cannabis-induced psychosis (CIP) is a mental health condition that can occur after using cannabis, especially in high doses or over long periods of time. It involves a temporary loss of contact with reality, including hallucinations, delusions, confusion, and/or severe anxiety [2].

Symptoms often appear within hours or days of heavy cannabis consumption and may last from several days to weeks or even months. While the psychosis episode itself can be resolved, it may increase the risk of future mental health challenges, particularly for those with a history of or vulnerability to psychosis or who develop schizophrenia [3].

Who is most at risk?

Not everyone who uses cannabis will experience psychosis. However, research shows that certain risk factors greatly increase the likelihood of developing psychosis [4]:

  • Using high-THC cannabis concentrates or edibles frequently
  • Beginning cannabis use during adolescence or early adulthood
  • Having a family history of schizophrenia, bipolar disorder, or other psychotic disorders
  • Combining cannabis with alcohol or other substances
  • Experiencing chronic stress or trauma

Even though cannabis is often viewed as harmless, its effects on the developing brain can be unpredictable and, for some, profoundly destabilizing.

Related: How to Tell if Cannabis Use in Young Adults Has Moved Beyond “Recreational”

How common is cannabis-induced psychosis?

While cannabis use is widespread, cannabis-induced psychosis is less common. That being said, it’s serious enough that experts are paying close attention.

Research tells us that people who use high-potency cannabis daily are five times more likely to develop a psychotic disorder than non-users [1]. A major study found that in cities where high-THC cannabis is widely available, up to 30 percent of new psychosis cases were linked to cannabis use [3].

What’s particularly concerning is that:

  • THC potency has tripled over the past two decades, rising from roughly 4% in the 1990s to over 15% today [4].
  • The teen and young-adult brain is still developing, making it more vulnerable to cannabis’s effects [4].
  • People who experience psychotic symptoms or one episode of cannabis-induced psychosis are more likely to develop a chronic psychotic disorder if they continue using [7].

Recognizing these risk factors early allows you to act before cannabis use spirals into a bigger problem.

What are the symptoms of cannabis psychosis?

CIP can vary from person to person, but it usually involves a sudden and severe change in perception, mood, or behavior after cannabis use.

Common symptoms of drug-induced psychosis include:

  • Hallucinations: Seeing or hearing things that aren’t real
  • Delusions: False, fixed beliefs (for example, believing others are out to harm you)
  • Disorganized thinking or speech: Jumping between unrelated ideas
  • Extreme anxiety or panic: Panic or anxiety attacks from cannabis use
  • Depersonalization: Feeling detached from yourself or reality
  • Rapid mood changes: Shifting from euphoria to fear or irritability
  • Agitation or aggression: Often accompanied by confusion

During an episode, cannabis users may not realize what’s happening. For parents, it can feel as if their child has suddenly become unreachable. Recognizing these signs and seeking help right away can make recovery faster and safer [5].

Related: How To Tell If Your Child is Smoking Weed

Can cannabis-induced psychosis be fixed?

Yes, recovery is absolutely possible. For many who experience cannabis-induced psychosis, it becomes a turning point. With early treatment and consistent support, it’s possible to make a full recovery.

Effective care often includes:

  • Stopping cannabis use: Abstinence from cannabis, along with other types of substance abuse, is the most important factor in preventing recurrence. Continued use significantly increases the risk of psychosis [6].
  • Stabilizing mental health: Short-term therapy or medication can help manage lingering anxiety, paranoia, or sleep issues.
  • Long-term support: Counseling, family education, and structured sober-living programs help rebuild coping and life skills, accountability, and trust.

Addressing why cannabis use began, whether it started as a way to manage anxiety, depression, or social pressure, is the first step to recovery. A supportive, nonjudgmental environment gives your loved one the best chance to heal.

How long does cannabis psychosis last?

Episodes of cannabis associated psychosis typically last a few days to several weeks, depending on potency, frequency of use, and individual vulnerability [6].

  • Acute phase: Psychiatric symptoms peak within 24–72 hours of heavy use.
  • Recovery phase: Many symptoms improve within one to two weeks of stopping cannabis.
  • Persistent symptoms: In some cases, especially when use continues, psychosis can persist or develop into a longer-term disorder such as schizophrenia [7].

Roughly one in three people who experience CIP may later develop a chronic psychotic illness, especially those who resume cannabis use or have a family history of mental illness [7]. Early, compassionate intervention can greatly reduce that risk.

Related: Addiction to Marijuana: What You Need To Know

Finding hope after cannabis-induced psychosis

Experiencing psychosis, or watching your child or loved one go through psychosis, can feel unbearable. But rest assured that there is hope. Most people who experience psychotic symptoms recover fully, rebuild insight, and go on to live meaningful lives.

Recovery is most successful when treatment takes place within a supportive network of family, clinicians, and community. At New Life House, young men learn how to overcome substance use disorders in a community, stay grounded in sobriety, strengthen relationships, and rediscover purpose.

If your loved one is having a hard time after cannabis use or showing signs of psychosis, help is available right now. Reach out to our expert team today to learn more about cannabis addiction treatment at our sober living in Los Angeles, CA. We can provide support that will make the difference between ongoing chaos and a new beginning built on stability, understanding, and hope.

References

  1. Di Forti, M., Morgan, C., Dazzan, P., Pariante, C., Mondelli, V., Marques, T. R., Handley, R., Luzi, S., Russo, M., Paparelli, A., Butt, A., Stilo, S. A., Wiffen, B., Powell, J., & Murray, R. M. (2009). High-potency cannabis and the risk of psychosis. The British Journal of Psychiatry, 195(6), 488–491. https://doi.org/10.1192/bjp.bp.109.064220
  2. Cannabis and teens. (2024, February 15). Cannabis and Public Health. https://www.cdc.gov/cannabis/health-effects/cannabis-and-teens.html
  3. Di Forti, M., Quattrone, D., Freeman, T. P., Tripoli, G., Gayer-Anderson, C., Quigley, H., Rodriguez, V., Jongsma, H. E., Ferraro, L., La Cascia, C., La Barbera, D., Tarricone, I., Berardi, D., Szöke, A., Arango, C., Tortelli, A., Velthorst, E., Bernardo, M., Del-Ben, C. M., . . . Van Der Ven, E. (2019). The contribution of cannabis use to variation in the incidence of psychotic disorder across Europe (EU-GEI): a multicentre case-control study. The Lancet Psychiatry, 6(5), 427–436. https://doi.org/10.1016/s2215-0366(19)30048-3
  4. Cannabis (Marijuana) and cannabinoids: What you need to know. (n.d.). NCCIH. https://www.nccih.nih.gov/health/cannabis-marijuana-and-cannabinoids-what-you-need-to-know
  5. National Alliance on Mental Illness. (2024, November 18). Warning signs and symptoms | National Alliance on Mental Illness (NAMI). National Alliance on Mental Illness (NAMI). https://www.nami.org/about-mental-illness/warning-signs-and-symptoms/
  6. Cannabis health effects. (2024, February 16). Cannabis and Public Health. https://www.cdc.gov/cannabis/health-effects/index.html
  7. Starzer, M. S. K., Nordentoft, M., & Hjorthøj, C. (2017). Rates and predictors of conversion to schizophrenia or bipolar disorder following Substance-Induced Psychosis. American Journal of Psychiatry, 175(4), 343–350. https://doi.org/10.1176/appi.ajp.2017.17020223