Medically reviewed by Drugs.com. Last updated on February 22, 2021.
What are other common names?
- S. cerevisiae
- Saccharomyces cerevisiae
- Baker's Yeast
- Dried Yeast Fermentate
- Medicinal Yeast
What is this product used for?
Brewer's yeast is used by some people as a food supplement to give some B vitamins. Others use it to help with sudden loose stools or diarrhea.
What are the precautions when taking this product?
Always check with your doctor before you use a natural product. Some products may not mix well with drugs or other natural products.
Do not use this product if you have allergies to yeast.
This product contains the amino acid tyramine. Do not use this product if you are taking drugs called MAO inhibitors. These are drugs like isocarboxazid (Marplan), phenelzine (Nardil), and tranylcypromine (Parnate).
Take extra care and check with your doctor if you have:
Stomach problems, especially Crohn’s disease
What should I watch for?
When do I need to call the doctor?
Signs of a very bad reaction. These include wheezing; chest tightness; fever; itching; bad cough; blue skin color; seizures; or swelling of face, lips, tongue, or throat. Go to the ER right away.
Very bad belly pain
Very bad loose stools
Very bad headache
Last Reviewed Date
Consumer information use
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