Cannabis Use Disorder Symptoms: A Buyer's Checklist

Cannabis use disorder (CUD) is a clinical diagnosis. A store, a lab test, or an online quiz cannot confirm it. A clinician makes the call in an interview. You can still check your own pattern against the standard criteria before you spend money on more product.

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Check the symptom list first

Clinicians use 11 criteria from the DSM-5. Two or more in the past 12 months point to a diagnosis: 2 to 3 is mild, 4 to 5 is moderate, 6 or more is severe.

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1. Using more, or for longer, than you planned.
2. Wanting to cut down or stop and not managing it.
3. Spending a lot of time getting, using, or recovering from use.
4. Craving.
5. Use that gets in the way of work, school, or duties at home.
6. Use that causes strain or arguments with people close to you.
7. Dropping activities you valued in order to use.
8. Using in situations that raise the risk of injury.
9. Continuing use when it makes a health problem worse.
10. Tolerance: you need more to get the effect you had before.
11. Withdrawal: symptoms when you stop or cut back.

Count the ones that apply to you in the past year and write the number down. A count of 2 or higher is a reason to talk to a clinician before your next purchase.

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Withdrawal signs

Cannabis withdrawal is a recognized syndrome. Signs include irritability, anger, trouble sleeping, poor appetite, restlessness, anxiety, low mood, and craving. Symptoms start within 1 to 3 days of stopping, peak in the first week, and fade over 1 to 2 weeks. Heavy concentrate use can produce stronger withdrawal than flower.

Parameters to set before you buy

• Potency. Labels list THC percent. Higher THC products carry higher risk of dependence and of anxiety or panic effects. Pick the lowest potency that does the job.
• Amount. Buy for a set period, such as two weeks. Bulk discounts raise the odds of use on more days.
• Frequency. Choose the days per week in advance and write them down. Daily use is the pattern most tied to tolerance and withdrawal.
• Method. Inhaled products act within minutes. Edibles take 30 to 120 minutes and last longer, which makes accidental overuse common.
• Budget. Set a figure for each month. Track what you spend.
• Timing. No use before work, before driving, or in place of sleep aids for more than a short stretch.

Pitfalls

• Treating legal status as proof of no risk. The criteria are the same in legal and illegal markets.
• Reading tolerance as a badge. Tolerance is criterion 10.
• Buying concentrate to save money per milligram of THC. Cost per dose does not measure risk.
• Using an online self-test as a diagnosis. It is a screen, not a diagnosis.
• Ignoring sleep or appetite changes after stopping. Those are recognized withdrawal signs.

The numbers

NESARC-III data put past-year CUD at 2.5% of US adults and lifetime CUD at 6.3%. About 3 in 10 people who use cannabis develop CUD at some point. Cognitive behavioral therapy and motivational enhancement therapy have the best evidence. No medication has FDA approval for CUD.

When to stop shopping and get help

Six or more criteria, or any use that led to a hospital visit, a crash, or a job loss, is a signal to contact a clinician. In the US, the SAMHSA National Helpline is 1-800-662-4357.