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Clinical Atlas Prestige · Evidence-first

Psych CASC / OSCEAddiction psychiatry — pharmaceutical and OTC misuse

Psych CASC / OSCE · Addiction psychiatry — pharmaceutical and OTC misuse

Explain codeine dependence and OAT to a sceptical patient — CASC communication station

MRCPsych/FRANZCP-style communication station: explain pharmaceutical opioid dependence, combination-product harm, Australian rescheduling context, OAT options, and motivational engagement without colluding with minimisation.

communication
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Target exams

FRANZCPMRCPsychABPNMD-DNB

Target exams

FRANZCPMRCPsychABPNMD-DNB
Prompt
A 42-year-old teacher with 4 years of escalating codeine–paracetamol combination use (previously OTC, now multiple private scripts) is medically stable after an ED attendance for abnormal LFTs. She is offended by the referral to addiction services, says ‘I’m not a junkie — it’s from the chemist,’ and wants only ‘a letter so pharmacists stop judging me.’ She is ambivalent about methadone because of stigma but worried about her liver and her job.

Station brief

Format. Communication station, approximately 7–10 minutes after reading. Examiner may play the patient.[1]

Candidate instructions. Build rapport. Explain how pharmacy-sourced codeine combinations can still cause dependence and liver risk. Outline treatment options including OAT and structured alternatives. Respond to stigma. Agree a collaborative plan and check understanding.[2][3]

Candidate scenario

LFTs are abnormal in a pattern concerning for paracetamol load; she is haemodynamically stable. She uses 20–30 combination tablets most days, has morning withdrawal, and failed unsupervised cut-downs. She cares for a teenage child and fears being reported as an “addict.” You may discuss buprenorphine or methadone in plain language, naloxone, single-prescriber plans, and non-opioid pain strategies.[2][3][5]

Marking domains

  • Empathy without colluding with “chemist medicines can’t addict” myth
  • Clear explanation of dependence and combination-product liver risk
  • Accurate, non-stigmatising description of OAT options and evidence frame
  • Shared decision-making and safety (naloxone, prescribing boundaries)
  • Teach-back and follow-up plan [1][2][3]
Reveal assessor key

Open. Name role/time; ask her main concerns (liver, job, stigma). Reflect emotion: fear of the addict label is common when medicines start in a pharmacy (Cooper).[1]

Explain dependence. Daily codeine can produce tolerance and withdrawal; needing more tablets and failed cut-downs is the medical syndrome clinicians call opioid dependence — it is about control and harm, not moral failure or injecting.[2]

Combination risk. The paracetamol (or ibuprofen in other brands) can damage organs even when the person “only” wants the codeine effect; her LFT signal is a reason to change course, not a punishment.[5]

Policy context (if asked). Australia made codeine prescription-only in 2018 because population harms were recognised; that policy reduced some community harms but people already dependent still deserve treatment.[4]

Options. (1) Structured supported taper with addiction follow-up if appropriate; (2) buprenorphine or methadone programmes — medicines that reduce craving and withdrawal and are used for dependence on pharmaceutical opioids as well as heroin (Cochrane frame in clinician language: “research supports these treatments for people dependent on strong pain/codeine medicines, not only street heroin”). Address methadone stigma honestly; offer buprenorphine if preferred and suitable. Provide take-home naloxone teaching.[3]

Boundaries. One prescriber, one pharmacy, monitoring for safety — framed as protecting her licence to work and her liver, not as police work.[2]

Close. Summarise agreed next step (clinic appointment, bloods, naloxone kit), written info, crisis contacts; teach-back of one key safety message.[1][3]

References

  1. [1]Cooper RJ. Over-the-counter medicine abuse: a qualitative study BMJ Open, 2013.PMID 23794565
  2. [2]Nielsen S, et al. Identifying and treating codeine dependence: a systematic review Med J Aust, 2018.PMID 29848240
  3. [3]Nielsen S, Tse WC, Larance B. Opioid agonist treatment for pharmaceutical opioids Cochrane Database Syst Rev, 2022.PMID 36063082
  4. [4]Cairns R, et al. Codeine use and harms in Australia after re-scheduling Addiction, 2020.PMID 31577369
  5. [5]Noghrehchi F, Cairns R, Buckley NA. Paracetamol poisoning admissions after codeine re-scheduling Int J Drug Policy, 2023.PMID 37116402