MAOI-inhibit MAO (enzyme found in nerves and other tissues) to breakdown NE, Dopamine, 5HT. No Tyramine Foods-aged cheese, aged meats, brewers yeast, fava beans, red wines, Smoked or pickled meats(may cause MAOI to be toxic).Increase NE=Increase heart. Increase Dopamine= Increase BP. Increase in BP and vasoconstriction r/t increased NE levels could cause stroke. Potential for fatal hypertensive crisis.