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Psych TopicsChild and adolescent psychiatry — adolescent substance use

Psych · Child and adolescent psychiatry — adolescent substance use

Adolescent substance use

Also known as Youth substance use · Adolescent SUD · Teen drug and alcohol use · CAMHS addiction · Adolescent cannabis alcohol stimulants · Youth dual diagnosis · Adolescent substance misuse · Paediatric substance use disorder

Exam-exhaustive fellowship reference on adolescent substance use — developmental epidemiology, cannabis/alcohol/stimulants, dual diagnosis, CRAFFT and comprehensive assessment with private interview plus family and school, motivational interviewing, family-based therapies (MDFT, CYT), brief interventions, harm reduction, youth pharmacotherapy limits including buprenorphine-naloxone evidence, disposition, and regional guideline framing. Distinct from adult AUD/OUD and adult dual-diagnosis topics. FRANZCP-primary, globally tagged.

high22 referencesUpdated 26 July 202615 min readVerification in progress

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FRANZCPMRCPsychABPNMD-DNBNEET-SS

Red flags

  • Opioid overdose risk or reduced consciousness — ABC, naloxone, medical resuscitation before psychosocial detail
  • Acute psychosis, severe agitation, or mania with ongoing high-THC cannabis or methamphetamine — dual formulation, medical exclusion of organic causes, do not withhold antipsychotics solely because toxicology is positive
  • Active suicidal intent, high overdose risk, or sexual exploitation/safeguarding concern — same-day senior review and multi-agency plan
  • Alcohol or benzodiazepine dependence with withdrawal risk — medical pathway; do not discharge untreated severe withdrawal
  • Sequential service denial ('come back when clean' or 'come back when psych is stable') when both disorders are active — activate concurrent/integrated care
  • Promising absolute confidentiality when safety, driving risk, or child protection requires carer or agency involvement
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Your progress

Saved on this device.

Practise this topic10 MCQs with explanations

Target exams

FRANZCPMRCPsychABPNMD-DNBNEET-SS

Red flags

  • Opioid overdose risk or reduced consciousness — ABC, naloxone, medical resuscitation before psychosocial detail
  • Acute psychosis, severe agitation, or mania with ongoing high-THC cannabis or methamphetamine — dual formulation, medical exclusion of organic causes, do not withhold antipsychotics solely because toxicology is positive
  • Active suicidal intent, high overdose risk, or sexual exploitation/safeguarding concern — same-day senior review and multi-agency plan
  • Alcohol or benzodiazepine dependence with withdrawal risk — medical pathway; do not discharge untreated severe withdrawal
  • Sequential service denial ('come back when clean' or 'come back when psych is stable') when both disorders are active — activate concurrent/integrated care
  • Promising absolute confidentiality when safety, driving risk, or child protection requires carer or agency involvement
The one-line answer

Screen with CRAFFT, see the young person alone, then treat both disorders at once. Adolescent substance use is assessed developmentally and family-inclusively: private youth interview plus family and school collateral, motivational and family-based therapies (CYT, MDFT, structured CBT packages) as first-line, harm reduction as legitimate clinical care, and medical or psychiatric escalation for intoxication, withdrawal, psychosis, overdose or safeguarding. Sequential "come back when you're clean" is the failure mode, not the plan.[2][3][14][21]

Meet the patient

A 16-year-old is brought to ED at 2am after a friend called an ambulance. He is drowsy, smells of alcohol, and his mother found a vape and a grinder in his bag last week. His school has already emailed about attendance.[1][4]

Interviewed alone once he is alert, he tells you he smokes high-potency cannabis most days, has been hearing his name called in empty rooms for a month, and stopped his ADHD medication in March.[7][10][11]

Three questions decide his care: is he medically safe?, is this substance-induced or an emerging psychosis?, and who is going to be told what? Everything below answers those three at consultant depth.[4][9][12]

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References22ShowHide
  1. [1]Degenhardt L, Stockings E, Patton G, et al. The increasing global health priority of substance use in young people Lancet Psychiatry, 2016.PMID 26905480
  2. [2]Stockings E, Hall WD, Lynskey M, et al. Prevention, early intervention, harm reduction, and treatment of substance use in young people Lancet Psychiatry, 2016.PMID 26905481
  3. [3]Knight JR, Sherritt L, Shrier LA, et al. Validity of the CRAFFT substance abuse screening test among adolescent clinic patients Arch Pediatr Adolesc Med, 2002.PMID 12038895
  4. [4]Bukstein OG, Bernet W, Arnold V, et al. Practice parameter for the assessment and treatment of children and adolescents with substance use disorders J Am Acad Child Adolesc Psychiatry, 2005.PMID 15908844
  5. [5]Squeglia LM, Jacobus J, Tapert SF The influence of substance use on adolescent brain development Clin Psychol Rev, 2009.PMID 19278130
  6. [6]Silins E, Horwood LJ, Patton GC, et al. Young adult sequelae of adolescent cannabis use: an integrative analysis Lancet Psychiatry, 2014.PMID 26360862
  7. [7]Volkow ND, Baler RD, Compton WM, et al. Adverse health effects of marijuana use N Engl J Med, 2014.PMID 24897085
  8. [8]Arseneault L, Cannon M, Poulton R, et al. Cannabis use in adolescence and risk for adult psychosis: longitudinal prospective study BMJ, 2002.PMID 12446537
  9. [9]Moore TH, Zammit S, Lingford-Hughes A, et al. Cannabis use and risk of psychotic or affective mental health outcomes: a systematic review Lancet, 2007.PMID 17662880
  10. [10]Di Forti M, Marconi A, Carra E, et al. Proportion of patients in south London with first-episode psychosis attributable to use of high potency cannabis: a case-control study Lancet Psychiatry, 2015.PMID 26359901
  11. [11]Di Forti M, Quattrone D, Freeman TP, et al. The contribution of cannabis use to variation in the incidence of psychotic disorder across Europe (EU-GEI): a multicentre case-control study Lancet Psychiatry, 2019.PMID 30902669
  12. [12]Schoeler T, Petros N, Di Forti M, et al. Effects of continuation, frequency, and type of cannabis use on relapse in the first 2 years after onset of psychosis: an observational study Lancet Psychiatry, 2016.PMID 27567467
  13. [13]Dennis M, Godley SH, Diamond G, et al. The Cannabis Youth Treatment (CYT) Study: main findings from two randomized trials J Subst Abuse Treat, 2004.PMID 15501373
  14. [14]Waldron HB, Turner CW Evidence-based psychosocial treatments for adolescent substance abuse J Clin Child Adolesc Psychol, 2008.PMID 18444060
  15. [15]Rigter H, Henderson CE, Pelc I, et al. Multidimensional family therapy lowers the rate of cannabis dependence in adolescents: a randomised controlled trial in Western European outpatient settings Drug Alcohol Depend, 2013.PMID 23140805
  16. [16]Tanner-Smith EE, Lipsey MW Brief alcohol interventions for adolescents and young adults: a systematic review and meta-analysis J Subst Abuse Treat, 2015.PMID 25300577
  17. [17]Woody GE, Poole SA, Subramaniam G, et al. Extended vs short-term buprenorphine-naloxone for treatment of opioid-addicted youth: a randomized trial JAMA, 2008.PMID 18984887
  18. [18]Hettema J, Steele J, Miller WR Motivational interviewing Annu Rev Clin Psychol, 2005.PMID 17716083
  19. [19]Prochaska JO, DiClemente CC Stages and processes of self-change of smoking: toward an integrative model of change J Consult Clin Psychol, 1983.PMID 6863699
  20. [20]Mueser KT, Drake RE, Wallach MA Dual diagnosis: a review of etiological theories Addict Behav, 1998.PMID 9801712
  21. [21]Drake RE, Mercer-McFadden C, Mueser KT, et al. Review of integrated mental health and substance abuse treatment for patients with dual disorders Schizophr Bull, 1998.PMID 9853791
  22. [22]Hunt GE, Siegfried N, Morley K, et al. Psychosocial interventions for people with both severe mental illness and substance misuse Cochrane Database Syst Rev, 2019.PMID 31829430

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