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Psychiatry · Antidepressants: moclobemide
Sample itemA depressed patient needs an MAOI but wants to avoid dietary restriction. Which drug is a reversible inhibitor of MAO-A with minimal tyramine interaction?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
D. Moclobemide
Moclobemide is a reversible inhibitor of monoamine oxidase A (RIMA), so tyramine can displace it and the cheese reaction is rare. Phenelzine and tranylcypromine irreversibly inhibit both isoforms and require dietary restriction. Moclobemide still interacts with serotonergic drugs.
Option by option
A. Tranylcypromine
Tranylcypromine is an irreversible non-selective MAOI.
B. Phenelzine
Phenelzine is an irreversible non-selective MAOI.
C. Selegiline oral high dose
High-dose oral selegiline loses selectivity and inhibits MAO-A.
D. Moclobemide (correct)
Correct. Moclobemide is a RIMA with minimal tyramine effect.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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