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Clinical Atlas Prestige · Evidence-first

Psych CASC / OSCEAddiction psychiatry — acute stimulant syndromes

Psych CASC / OSCE · Addiction psychiatry — acute stimulant syndromes

Explain stimulant crash and why there is no methadone for ice — CASC communication station

MRCPsych/FRANZCP-style communication station: explain MAP vs primary psychosis, crash/suicide risk, absence of approved anti-craving standard, CM/psychosocial plan, and negotiate family fears without stigma.

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Target exams

FRANZCPMRCPsychABPNMD-DNB

Target exams

FRANZCPMRCPsychABPNMD-DNB
Prompt
A 30-year-old man is medically clearing after ice intoxication with brief MAP. He wants 'a craving tablet like methadone' before discharge. His sister fears schizophrenia and demands lifelong depot. He is day 2 post-binge, tearful, craving, passive SI without plan.

Station brief

Format. Communication station, approximately 7–10 minutes active time after reading. You are the psychiatry/addiction registrar. Examiner may play patient and/or sister. [1]

Candidate instructions. Explain what happened during ice intoxication and psychosis in plain language. Describe the crash and why suicide risk needs a plan. Explain honestly that there is no approved methadone-like anti-craving medicine as standard care. Outline psychosocial next steps (including contingency management concepts in lay terms) and negotiate against premature lifelong schizophrenia labelling. Check understanding and agree a collaborative safety and follow-up plan. [1][2]

Candidate scenario

He is medically stable after crystal methamphetamine binge with brief MAP that is settling. Day 2: tearful, craving, passive SI. He wants a craving tablet "like methadone." Sister demands lifelong depot "so this never happens." You propose observation/safety plan, early dual-diagnosis/AOD follow-up, and psychosocial treatment engagement. [3][1]

Marking domains

  • Empathy, structure, non-stigmatising language
  • Accurate plain-language model of intoxication, MAP and crash
  • Honest explanation of no approved anti-craving/substitution standard
  • Safety planning for day-2 suicide risk
  • Lay description of psychosocial care / CM-style reinforcement and AOD follow-up
  • Negotiates sister's schizophrenia fears without colluding in day-one lifelong labelling
  • Checks understanding / teach-back [1][2][4]
Reveal assessor key

Open. Name time; ask patient and sister top concerns (craving, "going mad," fear of addiction medications). [1]

Explain ice intoxication and MAP. "High-dose methamphetamine can drive the brain's dopamine systems so hard that people develop paranoia and hearing voices for a period — often while still knowing where they are. Heavier use periods make this more likely. We treat the danger now and watch how symptoms change when the drug is out of the system before deciding if this is a long-term primary illness." [3]

Explain the crash. "After a binge people often crash — sleeping a lot, then around the second day feeling low, empty, irritable and craving. That low mood window is when suicide risk can rise, so we take safety seriously even if he seems calmer than during the high." [2]

No methadone-for-ice. "For heroin there are licensed medicines like methadone or buprenorphine that replace and stabilise. For methamphetamine, guidelines say the main treatment is structured psychosocial care — things like programmes that reward drug-free tests (contingency management), counselling skills, and dual-diagnosis support. Some research medicines exist in specialist settings, but there is no approved standard anti-craving tablet we must start today like methadone." [1][4]

Sister's depot demand. Acknowledge fear; explain time-limited medicine for psychosis if needed, early review, dual formulation — not automatic lifelong depot after one ice-related episode. [3]

Plan. Safety plan (means, contacts, when to return), sleep/food/support, AOD and mental-health follow-up within days, harm reduction, written info, teach-back. [1][2]

Close. Summarise; check understanding; crisis numbers. [1]

References

  1. [1]ASAM/AAAP Clinical Guideline Committee The ASAM/AAAP Clinical Practice Guideline on the Management of Stimulant Use Disorder J Addict Med, 2024.PMID 38669101
  2. [2]McGregor C, Srisurapanont M, Jittiwutikarn J, et al. The nature, time course and severity of methamphetamine withdrawal Addiction, 2005.PMID 16128721
  3. [3]McKetin R, Lubman DI, Baker AL, et al. Dose-related psychotic symptoms in chronic methamphetamine users: evidence from a prospective longitudinal study JAMA Psychiatry, 2013.PMID 23303471
  4. [4]Pfund RA, Ginley MK, Boness CL, et al. Contingency Management for Drug Use Disorders: Meta-Analysis and Application of Tolin's Criteria Clin Psychol (New York), 2024.PMID 38863566