Early Detection of Problematic Use: Warning Signs and First Steps

## Understanding the Spectrum: From Occasional Use to Dependence

Cannabis use is not a binary phenomenon – either "harmless" or "addiction." Between these poles lies a wide spectrum on which consumption patterns develop, change, and can escalate. Understanding these stages is the foundation for early detection and appropriate response.

The DSM-5 defines Cannabis Use Disorder using eleven criteria. Two to three criteria indicate a mild disorder; four to five indicate moderate; six or more indicate a severe disorder. Key criteria include using more than intended, repeated unsuccessful attempts to cut down, strong craving, failure to fulfill major obligations, continued use despite social problems, loss of interest in previously enjoyed activities, and withdrawal symptoms.

## Warning Signs: Physical, Psychological, Social

Physical warning signs include persistent cough and mucus production, frequent respiratory infections, elevated resting heart rate, sleep disturbances without cannabis (despite using it as a sleep aid), and – in long-term heavy users – Cannabinoid Hyperemesis Syndrome (CHS), characterized by cyclic severe nausea and vomiting relieved by hot showers.

Psychological and cognitive warning signs include persistent irritability when not using, depressive mood between use periods, emotional blunting, increasing anxiety or paranoia, concentration difficulties when sober, working memory problems, slowed thinking, decreased motivation and interest in previously enjoyed activities, and thoughts frequently revolving around cannabis.

Social warning signs include conflicts in partnerships or family due to use patterns, withdrawal from non-using friends, new social contacts almost exclusively with cannabis users, poor work or school performance, and financial difficulties from purchase costs.

## The CUDIT-R Assessment

The Cannabis Use Disorders Identification Test – Revised (CUDIT-R) is a validated 8-item questionnaire for identifying cannabis problems. Scoring: 0–7 points suggests no problem; 8–11 points indicates risky use where counseling is recommended; 12 or more points suggests probable Cannabis Use Disorder requiring professional help.

## The Consumption Diary

A consumption diary is one of the most effective tools for self-monitoring. Record: date and time of use, amount and form (joints, vaporizer, edibles, grams of THC), situation (alone, in company, at home, out), mood beforehand (triggers: stress, boredom, social occasions), mood afterward (relaxation, euphoria, anxiety, paranoia), and next-day functionality (concentration, sleep, energy).

## Comorbidities

Common co-occurring conditions include depression (cannabis use and depression reinforce each other), anxiety disorders, ADHD (above-average cannabis use, often as self-medication), PTSD (cannabis used for dissociation and suppression of flashbacks), and psychotic disorders (chronic use can trigger existing vulnerability). Treatment of comorbidities must always occur alongside addiction treatment.

## Motivational Interviewing

MI is a scientifically supported counseling technique that constructively uses ambivalence and strengthens intrinsic motivation for change rather than triggering resistance through pressure or confrontation. Core principles: express empathy, develop discrepancy, roll with resistance, and support self-efficacy.

## Professional Help Resources

Addiction counseling centers are available throughout Germany (Caritas, Diakonie, AWO), free and anonymous. Online counseling is available at drugcom.de (BZgA). General practitioners serve as a first point of contact and can refer to addiction specialists or psychiatrists. Specialized addiction clinics handle severe cases requiring inpatient detoxification and rehabilitation. Self-help groups include Marijuana Anonymous (MA) and Kreuzbund.