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Possible Interactions with: Brewer's Yeast

Index > Supplement Interactions > Possible Interactions with: Brewer's Yeast
Also listed as: Brewer's Yeast

Interactions

If you are currently being treated with any of the following medications, you should not use brewer's yeast without first talking to your healthcare provider.

Monoamine Oxidase Inhibitors (MAOIs) -- Brewer's yeast contains a large amount of tyramine, a substance that can interact with MAOIs and cause a hypertensive crisis. A hypertensive crisis is characterized by a rapid and dangerous rise in blood pressure that can cause heart attack or stroke. MAOIs are used to treat depression and include

  • Phenelzine (Nardil)
  • Tranylcypromine (Parnate)
  • Selegiline (Ensam, Eldepryl)
  • Isocarboxazid (Marplan)

Meperidine (Demerol) -- As with MAOI antidepressants, brewer's yeast may also lead to hypertensive crisis if taken with Demerol, a narcotic medication used to relieve pain.

Drug Interactions

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