Do not take the combination unless directed. If you already take it, do not stop on your own — contact a pharmacist or prescriber promptly.
Fermented foods like sauerkraut are high in tyramine, which can interact dangerously with MAOIs, potentially causing a life-threatening hypertensive crisis.
Sauerkraut and other fermented foods can contain variable high levels of tyramine.
Risk is highest with non-selective MAOIs like phenelzine or tranylcypromine.
Follow a low-tyramine diet under medical supervision.
Symptoms of crisis require urgent evaluation.
MAOIs inhibit monoamine oxidase enzymes, preventing the breakdown of tyramine in the gastrointestinal tract and liver. Undigested tyramine from sauerkraut is absorbed into the bloodstream, leading to excessive norepinephrine release and vasoconstriction.
Acute hypertensive crisis, characterized by severe headache, palpitations, neck stiffness, and potentially stroke, myocardial infarction, or death if untreated.
Strictly avoid tyramine-rich fermented foods like sauerkraut while on MAOIs. If ingestion occurs, seek emergency medical care immediately; treatment may include phentolamine or other antihypertensives.
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