Possible Interactions with Brewer's Yeast
Overview
Brewer’s yeast contains a significant amount of tyramine, a substance that should be avoided if you are taking any antidepressants that are monoamine oxidase inhibitors (MAOIs). Examples of these medications are phenelzine, tranylcypromine, pargyline, selegiline, and isocarboxazid. Selegiline is also used for the treatment of Parkinson’s disease. Brewer’s yeast may also interact with meperdine, a narcotic analgesic. The dangerous interaction between brewer’s yeast and these medications may lead to “hypertensive crisis,” a rapid and severe increase in blood pressure that is characterized by nausea and vomiting, headache, and irregular heartbeat. This reaction may result in a heart attack or stroke.
Drug Interactions