Which should be avoided with MAOIs to reduce risk of adverse reactions?

• A. Tyramine-containing foods
• B. Caffeine
• C. Alcohol
• D. Vitamin C

Answer: (A)

When taking MAO inhibitors, the body’s ability to break down tyramine is blocked. Tyramine is found in many aged or fermented foods and acts as an indirect sympathomimetic, releasing stored norepinephrine and causing a rapid, dangerous rise in blood pressure. This hypertensive crisis is the major reason to avoid tyramine-containing foods—things like aged cheeses, cured meats, certain fermented products, and some beers and wines.

Other options don’t carry the same textbook interaction. Caffeine can raise blood pressure in some people but is not the classic, life-threatening interaction linked to MAOIs. Alcohol and vitamin C don’t have the same direct risk of triggering a hypertensive crisis with MAOIs. The key concept is the tyramine interaction which is why a tyramine-restricted diet is essential with MAO inhibitors. Seek urgent care if severe headache, chest pain, neck stiffness, or rapid BP changes occur.