Psych CASC / OSCE · Psychopharmacology — monoamine oxidase inhibitors
Explaining MAOI diet, washouts and patch options (CASC)
CASC-style communication station: shared decision on classic MAOI versus selegiline patch, practical tyramine teaching, washouts, and absolute drug bans without terror or false reassurance.
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Target exams
Station instructions (candidate)
You have 7 minutes. Explain why an MAOI is being considered after multiple failed antidepressants, what the tyramine diet means in practical language, which medicines are absolute no-list items (including tramadol and many cold remedies), and how the selegiline patch differs on diet rules at 6 mg/24 h versus higher doses. Balance hope from TRD/atypical-depression evidence with honest safety requirements. Do not guarantee cure. Do not dismiss fear. Offer written materials and follow-up.[1][2][3][6]
Marking domains
Agenda setting and empathy; accurate plain-language explanation of why MAOIs can help when other tablets have not; practical high-tyramine food teaching (not endless folklore bans); clear absolute drug bans including tramadol and dextromethorphan-containing cold remedies; selegiline patch diet nuance without claiming zero interaction risk; washout concept if switching from current serotonergic medicines; collaborative plan, pharmacy alert, crisis contacts for severe headache after restricted food.[1][2][4][5]
Model communication map
- Open: thank her; check understanding of previous trials; name shared goals (mood recovery, work function, safety).[1]
- Why MAOI now: several proper antidepressant pathways have not led to remission; for some people with treatment-resistant or atypical symptom patterns, MAOIs remain an evidence-supported specialist option.[1][6]
- Diet without terror: a short list of high-risk aged/fermented/spoiled foods and draft beer — not a ban on all enjoyable eating; written card; storage matters.[2]
- Medicine red lines: no SSRI combinations; no tramadol; careful with cold-and-flu products; always check with pharmacy/doctor first.[5][1]
- Patch option: selegiline skin patch has trial evidence in depression; at the lowest 6 mg/24 h strength many protocols relax routine tyramine diet, but higher strengths put diet rules back on, and dangerous drug combinations still apply at every dose. Availability varies by country.[3][4]
- Washouts: if still on a serotonergic tablet, there is a planned gap (about two weeks for many agents; longer after fluoxetine) before a classic MAOI — safety, not bureaucracy.[1]
- Close: questions, written diet/drug list, who to call for sudden severe headache, next review, consent check.[2]
Common fails
- Saying "just avoid all cheese forever" without practical nuance or written plan.[2]
- Allowing tramadol or cold remedies "if the diet is good".[5]
- Claiming the patch has no interactions at 12 mg/24 h.[4]
- Guaranteeing remission or terrifying the patient into refusing without discussing benefits.[1]
References
- [1]Van den Eynde V, Abdelmoemin WR, Abraham MM, et al. The prescriber's guide to classic MAO inhibitors (phenelzine, tranylcypromine, isocarboxazid) for treatment-resistant depression CNS Spectr, 2023.PMID 35837681
- [2]Van den Eynde V, Gillman PK, Blackwell BB The Prescriber's Guide to the MAOI Diet-Thinking Through Tyramine Troubles Psychopharmacol Bull, 2022.PMID 35721816
- [3]Bodkin JA, Amsterdam JD Transdermal selegiline in major depression: a double-blind, placebo-controlled, parallel-group study in outpatients Am J Psychiatry, 2002.PMID 12411221
- [4]Amsterdam JD A double-blind, placebo-controlled trial of the safety and efficacy of selegiline transdermal system without dietary restrictions in patients with major depressive disorder J Clin Psychiatry, 2003.PMID 12633131
- [5]Gillman PK Monoamine oxidase inhibitors, opioid analgesics and serotonin toxicity Br J Anaesth, 2005.PMID 16051647
- [6]Liebowitz MR, Quitkin FM, Stewart JW, et al. Antidepressant specificity in atypical depression Arch Gen Psychiatry, 1988.PMID 3276282