st johns wort is not a MAO inhibitor. MAO inhibitors are a class of drugs used for depression and Parkinson’s Disease. Examples of MAO inhibitors include isocarboxazid (brand name Marplan), phenelzine (Nardil), tranylcypromine (Parnate), and selegiline (Eldepryl).
MAO inhibitors may interact with tyramine, a chemical found in many drugs, foods, and beverages. If you consume foods or alcoholic drinks containing tyramine, a rapid and potentially life-threatening rise in blood pressure can occur that can cause a mild headache while your heart explodes (I hate it when this happens, justs ruins my day). Given the seriousness of this interaction, it’s crucial to be aware of foods and drinks that may interact with MAO inhibitors.