Drug Use Disorders Identification Test (DUDIT)
DUDIT complements AUDIT for non-alcohol substances. It captures frequency, dependency symptoms, and social consequences. Answer based on the last 12 months.
How often do you use non-prescribed drugs or misuse prescription medication?
Do you use more than one type of drug on the same occasion?
How many times do you take drugs on a typical day when you use?
How often are you influenced by drugs so that your daily tasks are not fulfilled?
How often do you feel bad or guilty about your drug use?
How often do people criticize your drug use or the consequences of your use?
How often do you feel a strong desire or urge to use drugs?
How often have you needed drugs in the morning to get yourself going after heavy use?
How often have you had memory problems after using?
Have you or someone else been hurt because of your drug use?
Has a relative or friend, or a doctor or nurse, been concerned about your drug use or suggested you cut down?
DUDIT score
0
Range 0–44
Interpretation
No indication of hazardous drug use
Continue monitoring. Reinforce healthy coping strategies and avoidance of illicit substances.
How to Use This Calculator
Screen all non-alcohol substances
Include illicit drugs and prescription medications used off-label or above prescribed doses.
Answer based on the past 12 months
Capture intermittent binge use, polydrug episodes, and injection or inhalation practices.
Plan follow-up care
Positive screens should trigger detailed assessment, harm reduction planning, and connection to treatment services.
Formula
Total DUDIT score = Sum of item scores (items 1–9 scored 0–4, items 10–11 scored 0, 2, or 4)
Cut-offs:
- Men: ≥6 indicates hazardous use
- Women: ≥2 indicates hazardous use
- ≥25 suggests probable dependence
Source: Bergman & Källmén, DUDIT validation studies (2002).
Full Description
The DUDIT questionnaire extends alcohol screening to other psychoactive substances. It measures consumption, dependence symptoms, and harm. Use results with urine drug screens, clinical interviews, and mental health assessments. Tailor interventions—harm reduction, medication-assisted treatment, behavioural therapy—based on the substance (opioids, stimulants, benzodiazepines, cannabis) and severity. Integrate with overdose prevention (naloxone), infectious disease screening, and social support services.
Frequently Asked Questions
Can I use DUDIT for prescription misuse?
Yes. Include painkillers, stimulants, sedatives taken without prescription or in higher doses than prescribed.
Is there a version for adolescents?
DUDIT-E is an extended version for adolescents. Standard DUDIT is validated for adults.
What about combined alcohol and drug use?
Use AUDIT alongside DUDIT to capture polydrug use. Address synergistic overdose risks (e.g., alcohol + opioids).
How often should I repeat DUDIT?
Repeat during treatment to monitor progress (monthly or quarterly). Early improvements often show reduced frequency scores.