Psych CASC / OSCE · Addiction psychiatry
Benzodiazepine dependence counselling — CASC communication station
MRCPsych/FRANZCP-style communication station: explain dependence vs moral failure, seizure risk of abrupt stop, gradual taper plan, alcohol interaction, sleep/anxiety alternatives, and shared decision-making.
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Target exams
Station brief
Format. Communication and shared decision-making station, approximately 7–10 minutes after reading time. You are the psychiatry registrar in outpatient clinic. [1]
Candidate instructions. Explain physiological dependence without stigma, why stopping this weekend is unsafe, outline a gradual taper in plain language, address alcohol, offer alternatives for sleep and anxiety, involve the partner’s seizure fears accurately, and agree follow-up. Do not invent statute numbers. [2][3]
Candidate scenario
Patient: “I need these out of my system before the wedding — cold turkey, two days, done.” Partner: “His uncle had fits coming off tablets — should we take him to ED and stop them there all at once?” Current dose stable; no seizure yet; drinks nightly. [1]
Marking domains
- Non-stigmatising explanation of tolerance and withdrawal
- Clear warning: abrupt stop after years of daily use can cause severe anxiety, insomnia, and seizures
- Gradual reduction plan in plain language (pace individualised; slower if symptoms)
- Alcohol: increases sedation and risks; needs its own honest plan
- Alternatives: sleep schedule/CBT-I principles, anxiety treatment without indefinite BZD escalation
- Partner engagement; safety-net symptoms (seizure, confusion) → emergency care
- Collaborative written plan and follow-up; no false promise of zero symptoms
Reveal assessor key
Open. Role, privacy, agenda, what they already understand, acknowledge wedding stress and partner fear. [1]
Explain dependence simply. Brain adaptations to long-term diazepam mean the body expects the medicine; stopping suddenly can overshoot into shaking, panic, sleeplessness, and rarely fits — that is physiology, not weakness. [2][3]
Reject weekend cold turkey. Safer path is a planned slow reduction over weeks with medical review; if he has a fit, emergency care and restart of cover then controlled taper — not punishment. [1][5]
Alcohol. Combining alcohol with diazepam increases drowsiness and danger; cutting both abruptly can worsen withdrawal — need a coordinated plan. [2]
Supports. Education about risks (EMPOWER-style information), sleep and anxiety skills, follow-up with GP/psychiatry, partner as ally for pacing not policing. [4][1]
Close. Three take-homes: do not stop suddenly; reduce gradually with us; seek urgent help for fit, confusion, or severe tremor. Check teach-back. [1][5]
References
- [1]Brett J, Murnion B. Management of benzodiazepine misuse and dependence Aust Prescr, 2015.PMID 26648651
- [2]Soyka M. Treatment of Benzodiazepine Dependence N Engl J Med, 2017.PMID 28614686
- [3]Ashton H. The diagnosis and management of benzodiazepine dependence Curr Opin Psychiatry, 2005.PMID 16639148
- [4]Tannenbaum C, Martin P, Tamblyn R, et al. Reduction of inappropriate benzodiazepine prescriptions among older adults through direct patient education: the EMPOWER cluster randomized trial JAMA Intern Med, 2014.PMID 24733354
- [5]Brunner E, Chen CA, Klein T, et al. Joint Clinical Practice Guideline on Benzodiazepine Tapering: Considerations When Risks Outweigh Benefits J Gen Intern Med, 2025.PMID 40526204