Marijuana Use Disorder in Colorado: What Legalization Didn't Solve

Colorado made history in 2012 when voters passed Amendment 64, making it one of the first two states in the nation to legalize recreational cannabis. More than a decade later, Colorado’s cannabis industry generates billions of dollars in revenue annually, dispensaries are ubiquitous, and the culture around marijuana has shifted dramatically.

But legalization — for all its genuine benefits in terms of criminal justice reform and consumer safety — did not eliminate cannabis addiction. In fact, some evidence suggests that the normalization and commercialization of marijuana has contributed to increased use, higher-potency products, and more people developing cannabis use disorder. This article explores what that disorder looks like, who is most at risk, and what Colorado offers in terms of help and treatment.

What Is Cannabis Use Disorder?

Cannabis use disorder (CUD) is a recognized medical condition included in the Diagnostic and Statistical Manual of Mental Disorders (DSM-5). It is characterized by a problematic pattern of cannabis use that leads to significant impairment or distress. According to the National Institute on Drug Abuse (NIDA), approximately 9 percent of people who use cannabis will develop dependence — a figure that rises to about 17 percent among those who begin using in adolescence, and to 25 to 50 percent among daily users.

The Substance Abuse and Mental Health Services Administration (SAMHSA) reports that marijuana is the most commonly reported primary substance of concern among people entering substance use treatment, and the third most common overall after alcohol and opioids. In Colorado, cannabis-related treatment admissions have remained significant even as the state has navigated the broader opioid crisis.

Signs of cannabis use disorder include:

Using cannabis in larger amounts or for longer periods 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 use
Craving or a strong urge to use cannabis
Continued use despite recurring social or interpersonal problems caused by cannabis
Giving up important activities (work, school, hobbies, relationships) because of cannabis use
Using cannabis in physically hazardous situations
Continuing to use despite knowing it is causing physical or psychological problems
Tolerance: needing more cannabis to achieve the same effect
Withdrawal symptoms when stopping: irritability, anxiety, sleep problems, decreased appetite, restlessness, depressed mood

Many people are surprised to learn that cannabis has a genuine withdrawal syndrome. While it is generally less severe than withdrawal from alcohol or opioids, cannabis withdrawal can cause significant discomfort and is one of the primary reasons people struggle to quit on their own.

The Colorado Context: Legalization’s Unintended Consequences

Colorado’s cannabis regulatory framework has significantly improved consumer safety — products are tested for contaminants, labeled with THC concentrations, and sold in controlled environments. These are genuine public health benefits.

However, legalization has also contributed to several concerning trends:

Higher-potency products: The Colorado Department of Revenue tracks cannabis potency, and data shows that average THC concentrations in Colorado cannabis products have increased substantially since legalization. Flower products that were 10–12% THC a decade ago are now routinely 20–30%. Concentrates can exceed 80–90% THC. NIDA research suggests that higher-potency products are associated with greater risk of dependence and more severe withdrawal.

Normalization and reduced perception of risk: The Colorado Department of Public Health and Environment (CDPHE) surveys consistently show that Coloradans, particularly young people, perceive cannabis as having relatively low risk compared to other substances. This reduced risk perception is associated with higher rates of use and earlier initiation.

Adolescent exposure: Despite legal age restrictions, Colorado adolescents report cannabis use rates that have fluctuated since legalization but remain among the highest in the nation. CDPHE Healthy Kids Colorado Survey data shows elevated adolescent use, which is particularly concerning because NIDA research demonstrates that the developing brain is significantly more vulnerable to cannabis-related harm than the adult brain.

Cannabis use during pregnancy: CDPHE has reported increased rates of cannabis use during pregnancy in Colorado, despite strong evidence that prenatal cannabis exposure is associated with adverse outcomes for the developing fetus, including low birth weight and neurodevelopmental effects.

Psychosis risk: A growing body of research, including studies published in peer-reviewed journals and cited by NIDA, links high-potency cannabis use — particularly in young people with genetic vulnerability — to an increased risk of cannabis-induced psychosis and schizophrenia spectrum disorders. This risk is not widely understood by the general public.

Who Is Most at Risk?

Cannabis use disorder affects a range of individuals, but certain factors increase risk:

Early initiation: Starting cannabis use before age 18 dramatically increases the risk of developing a use disorder. The adolescent brain is in a critical period of development, and cannabis use during this time can have lasting effects on memory, learning, and emotional regulation.

Daily use: People who use cannabis daily are far more likely to develop dependence than those who use occasionally or less frequently.

Mental health conditions: Cannabis use and mental health disorders are closely intertwined. Many people use cannabis to manage anxiety, depression, or PTSD — but chronic cannabis use can worsen these conditions over time. SAMHSA data shows high rates of co-occurring mental health disorders among people with cannabis use disorder.

Genetic factors: As with other substance use disorders, genetics plays a meaningful role in vulnerability to cannabis use disorder. Family history of substance use disorders or mental illness increases risk.

Social and environmental factors: Peer norms that strongly normalize cannabis use, easy access, and lack of strong family or community protective factors all contribute to risk.

Why People Struggle to Quit Alone

One of the most challenging aspects of cannabis use disorder is that it is often minimized — by the person using, by their peers, and sometimes even by healthcare providers. “It’s just weed” is a common refrain that delays help-seeking. But for people with cannabis use disorder, the subjective experience of trying to quit is often genuinely difficult:

Sleep disturbance can persist for weeks after stopping
Irritability and mood swings can strain relationships
Anxiety — often a primary reason for cannabis use — typically intensifies in early abstinence
Strong habitual cues (particular times of day, social settings, stress) trigger powerful cravings

Without support, many people return to use not because they lack willpower but because they are experiencing genuine neurological and psychological effects of withdrawal and do not have strategies to manage them.

Treatment for Cannabis Use Disorder in Colorado

Effective treatments for cannabis use disorder exist, and Colorado has resources to support recovery:

Cognitive Behavioral Therapy (CBT): The most evidence-supported treatment for cannabis use disorder. CBT helps people identify triggers, develop coping skills, and change the patterns of thinking and behavior that maintain use. Available through outpatient counseling programs across Colorado.

Motivational Enhancement Therapy (MET): A brief intervention focused on building intrinsic motivation to change, often combined with CBT. Research shows significant effectiveness for cannabis use disorder.

Contingency Management: A behavioral intervention that provides tangible rewards for drug-free urine samples. NIDA research supports its use for stimulant and cannabis use disorders.

SMART Recovery: A science-based mutual aid program that uses CBT and motivational principles, with meetings across Colorado and online. Particularly effective for people who prefer a non-12-step approach.

Marijuana Anonymous (MA): A 12-step program specifically for cannabis use disorder, with meetings available in Colorado and online.

Colorado Crisis Services: For people whose cannabis use has contributed to a mental health crisis, Colorado Crisis Services walk-in centers (available across the state) provide immediate assessment and connection to treatment.

No FDA-Approved Medications: Currently, there are no FDA-approved medications specifically for cannabis use disorder, though research is ongoing. However, medications may be appropriate for managing withdrawal symptoms such as sleep disturbance or anxiety.

Colorado’s Health First Colorado (Medicaid) and most private insurance plans cover outpatient counseling for cannabis use disorder. The CBHA has also funded community-based cannabis education and brief intervention programs targeting young adults.

A Note on “Medical Marijuana”

Some Coloradans use cannabis under a medical marijuana license for conditions including chronic pain, anxiety, PTSD, and sleep disorders. The use of medical cannabis for these conditions is a nuanced area where evidence is mixed and individual responses vary significantly.

If you are using cannabis for a medical condition and are concerned that your use has become problematic, speaking with a healthcare provider who specializes in addiction medicine can help you assess the situation and explore all available options — including non-cannabis treatments for your underlying condition.

Take the First Step

If cannabis use is causing problems in your life — affecting your work, relationships, health, or sense of who you are — you deserve support. Cannabis use disorder is real, treatment works, and you do not have to navigate this alone.

Call the Colorado Addiction Hotline today. Our counselors are knowledgeable about cannabis use disorder and can help you find outpatient counseling, SMART Recovery meetings, or other appropriate resources anywhere in Colorado. Calls are completely confidential and free of charge.

Legalization changed a lot of things. It did not change the fact that some people need help — and that help is available.

Sources: National Institute on Drug Abuse (NIDA); Substance Abuse and Mental Health Services Administration (SAMHSA); Colorado Department of Public Health and Environment (CDPHE); Colorado Department of Revenue; American Psychiatric Association (DSM-5)