Consuming fava beans while on MAOIs can lead to a hypertensive crisis due to tyramine content in the beans.
Hypertensive crisis can occur rapidly after ingestion; seek immediate medical attention for symptoms.
All MAOIs (e.g., phenelzine, tranylcypromine) carry this risk; no safe threshold for tyramine intake.
Educate patients on tyramine-restricted diet; consider alternatives if diet compliance is challenging.
Monitor blood pressure regularly, especially during initial therapy.
Fava beans contain tyramine, a monoamine that is normally metabolized by monoamine oxidase (MAO). MAOIs inhibit this enzyme, causing tyramine accumulation, which releases norepinephrine and triggers vasoconstriction and severe hypertension.
Risk of hypertensive crisis, including symptoms like severe headache, palpitations, nausea, vomiting, and potentially stroke or death if untreated.
Strictly avoid fava beans and other tyramine-rich foods while on MAOIs. Consult a healthcare provider for dietary guidelines and emergency treatment if symptoms occur.
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