A major risk associated with MAOI use is:

A major risk associated with MAOI use is:

• A. Massive HTN risk
• B. Weight gain
• C. Agranulocytosis
• D. Seizures

Answer: (A)

What makes MAO inhibitors particularly risky is the potential for a hypertensive crisis caused by tyramine interactions. MAO enzymes normally break down tyramine in the gut. When you block this enzyme, tyramine from aged cheeses, cured meats, fermented foods, and some beers can flood the bloodstream. Tyramine acts as a powerful releaser of norepinephrine, so it pushes a large amount of this neurotransmitter into circulation, causing a rapid and dangerous increase in blood pressure and system-wide vasoconstriction. This is why strict dietary restrictions and careful monitoring of drug interactions are essential with MAO inhibitors. Other listed risks aren’t the hallmark danger of MAOIs—weight gain, agranulocytosis, or seizures can occur with other meds, but hypertensive crisis tied to tyramine is the defining risk here.

What makes MAO inhibitors particularly risky is the potential for a hypertensive crisis caused by tyramine interactions. MAO enzymes normally break down tyramine in the gut. When you block this enzyme, tyramine from aged cheeses, cured meats, fermented foods, and some beers can flood the bloodstream. Tyramine acts as a powerful releaser of norepinephrine, so it pushes a large amount of this neurotransmitter into circulation, causing a rapid and dangerous increase in blood pressure and system-wide vasoconstriction. This is why strict dietary restrictions and careful monitoring of drug interactions are essential with MAO inhibitors. Other listed risks aren’t the hallmark danger of MAOIs—weight gain, agranulocytosis, or seizures can occur with other meds, but hypertensive crisis tied to tyramine is the defining risk here.