Medically Reviewed By

Brittany Kowalski, LCSW, ACS, CCS

Clinical Director, Speranza Behavioral Health · Last clinically reviewed June 2026

Marijuana Addiction: Is Cannabis Actually Addictive and What Does Treatment Look Like?

As New Jersey's adult-use cannabis market has expanded, a significant public health misconception has solidified: that marijuana is not addictive. This belief — widespread in popular culture, reinforced by cannabis industry messaging, and increasingly entrenched as legalization removes social stigma — is not supported by the scientific evidence.

Cannabis Use Disorder (CUD) is a real, diagnosable clinical condition recognized by the DSM-5, affecting approximately 9% of people who ever use cannabis and approximately 17% of those who begin in adolescence. Among daily users, the dependence rate rises to roughly 25–50%. Understanding what cannabis addiction looks like, who's at risk, and how it's treated is increasingly important as cannabis use rises across South Jersey and all of New Jersey.

What Is Cannabis Use Disorder?

Cannabis Use Disorder is defined by the DSM-5 as a problematic pattern of cannabis use leading to clinically significant impairment or distress, with at least 2 of 11 criteria present within a 12-month period. These criteria include:

• Using more cannabis than intended
• Persistent desire or unsuccessful efforts to cut down or control use
• Spending a great deal of time obtaining, using, or recovering from cannabis
• Craving or strong urge to use cannabis
• Recurrent cannabis use resulting in failure to fulfill major role obligations
• Continued use despite social or interpersonal problems caused by cannabis
• Giving up important activities because of cannabis use
• Using cannabis in hazardous situations (driving)
• Continued use despite knowledge of a physical or psychological problem caused by cannabis
• Tolerance — needing more cannabis for the same effect
• Withdrawal symptoms when cannabis is stopped

The severity of CUD is classified as mild (2–3 criteria), moderate (4–5), or severe (6+).

The Neuroscience: Why Cannabis Can Be Addictive

Cannabis's active compound, delta-9-tetrahydrocannabinol (THC), produces its effects by activating the brain's endocannabinoid system — a system that plays a central role in regulating mood, appetite, pain, and reward. THC mimics the natural endocannabinoid anandamide, binding to CB1 receptors throughout the brain, including in the reward circuitry.

With regular, heavy use:

1. The brain downregulates CB1 receptor density and sensitivity (tolerance)
2. The natural endocannabinoid system becomes dependent on external THC to maintain normal function
3. When cannabis is removed, the depleted natural system produces withdrawal

Modern high-THC cannabis dramatically escalates this risk. Cannabis products available in today's legal and illicit markets frequently contain 20–30% THC or higher — compared to 2–5% THC common in cannabis of the 1980s. Concentrated extracts (dabs, wax, shatter) can reach 70–90% THC. The addiction potential of these high-concentration products is significantly higher than what the foundational research on "marijuana" was conducted on.

Cannabis Withdrawal Is Real

One of the most persistent myths about cannabis is that there is no withdrawal. This is false. DSM-5 formally recognizes Cannabis Withdrawal Syndrome, which typically begins within 24–48 hours of cessation in regular users and includes:

• Irritability, anger, or aggression
• Anxiety and nervousness
• Sleep difficulty and insomnia
• Decreased appetite and weight loss
• Restlessness
• Depressed mood
• Physical discomfort (stomach pain, sweating, tremors, headache)

Withdrawal symptoms peak in the first week and typically resolve within 2 weeks, though insomnia and mood disturbance can persist longer. For heavy, long-term users, withdrawal can be significantly distressing — and is a primary driver of return to use during quit attempts.

Who Is Most at Risk for Cannabis Addiction?

• Early onset users — Use beginning in adolescence, when the brain is still developing, significantly increases addiction risk and long-term cognitive impact
• Daily users — Frequency of use is the strongest predictor of dependence
• Genetic predisposition — Family history of addiction increases risk
• Co-occurring mental health conditions — Particularly anxiety, depression, ADHD, and psychotic spectrum disorders; cannabis is frequently used to self-medicate
• High-THC concentrate use — Significantly higher addiction potential
• Adolescents and young adults — The developing brain is more vulnerable to cannabis's neurological effects

Cannabis and Mental Health

The relationship between cannabis and mental health is complex and bidirectional:

• Cannabis and anxiety: Short-term relief for many users; worsening of baseline anxiety, increased risk of panic attacks, and cannabis-induced anxiety disorder with heavy use
• Cannabis and depression: Evidence suggests regular cannabis use worsens depression in the medium to long term, particularly in those with genetic predisposition
• Cannabis and psychosis: High-THC cannabis is a dose-dependent risk factor for psychotic episodes and schizophrenia spectrum disorders in genetically vulnerable individuals. This risk is particularly significant with high-potency concentrates.
• Cannabis and motivation: Amotivational syndrome — reduced drive, initiative, and goal-directed behavior — is well-documented in heavy cannabis users

Cannabis Addiction Treatment at Speranza Behavioral Health

There is no FDA-approved medication for cannabis use disorder. Treatment is behavioral and highly effective when structured and evidence-based. At Speranza Behavioral Health in Woodbury, NJ, cannabis addiction treatment within our PHP and IOP programs includes:

• CBT for Cannabis Use Disorder — Identifying triggers, addressing permission-giving beliefs, building coping skills
• Motivational Enhancement Therapy (MET) — Particularly effective for cannabis use disorder, which is often characterized by significant ambivalence about stopping
• Dual diagnosis assessment and treatment — Identifying and treating the co-occurring anxiety, depression, ADHD, or trauma that cannabis was self-medicating
• Psychiatric evaluation — Non-cannabis treatment options for underlying conditions that were being managed with cannabis

Call (866) 814-0126 for a free, confidential assessment.

Related Reading:

• What Is Dual Diagnosis?
• Anxiety and Addiction
• What Is CBT and How Does It Treat Addiction?

About the Author

Brittany Kowalski

Brittany Kowalski is a licensed clinical social worker (LCSW) and behavioral health advocate at Speranza Behavioral Health in Woodbury, NJ. With over a decade of experience in addiction recovery and mental health treatment, she specializes in dual diagnosis care, trauma-informed therapy, and evidence-based outpatient programs serving South Jersey communities.