एर्गोटामिन और कैफीन और फेनेलज़िन का इंटरैक्शन

Excessive amounts of caffeine and chocolate may also cause hypertensive reactions.

…Alcohol-free and reduced-alcohol beer and wine products Miscellaneous Yeast extract (including brewer's yeast in large quantities) Meat extract Excessive amounts of chocolate and caffeine Also, any spoiled or improperly refrigerated, handled, or stored protein-rich foods such as meats, fish, and dairy products, including foods that may have undergone protein…

The potentiation of sympathomimetic substances and related compounds by MAO inhibitors may result in hypertensive crises (see WARNINGS ).

Therefore, patients being treated with phenelzine sulfate should not take sympathomimetic drugs (including amphetamines, cocaine, methylphenidate, dopamine, epinephrine, and norepinephrine) or related compounds (including methyldopa, L-dopa, L-tryptophan, L-tyrosine, and phenylalanine).

Also, they should not be given cocaine or local anesthesia containing sympathomimetic vasoconstrictors.