Consuming aged salami with linezolid can cause a severe hypertensive crisis due to tyramine content in the food and MAO inhibition by the drug.
Aged salami contains high levels of tyramine due to bacterial fermentation; other similar foods include aged cheeses, smoked fish, and soy products.
Interaction risk is highest in the first 2 weeks of therapy but persists throughout treatment.
Patients should receive dietary counseling before starting linezolid.
Emergency treatment may involve phentolamine or other alpha-blockers for hypertensive crisis.
Linezolid inhibits monoamine oxidase (MAO), which normally breaks down tyramine in the gut and liver. Aged salami is rich in tyramine from fermentation; without MAO, tyramine enters the bloodstream, displacing norepinephrine from nerve terminals and causing vasoconstriction and elevated blood pressure.
Risk of acute hypertensive crisis, potentially leading to severe headache, palpitations, chest pain, nausea, vomiting, or stroke; can be life-threatening, especially in patients with cardiovascular disease.
Strictly avoid tyramine-rich foods like aged or cured meats (e.g., salami, pepperoni) during linezolid therapy and for 48 hours after discontinuation. If ingestion occurs, monitor blood pressure closely and administer antihypertensive agents if needed; seek immediate medical attention for symptoms.
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