A member asked:

Can xifaxan (rifaximin) & probiotics cause your stool to smell "chemically"? it almost smells like motor oil. stool looks brownish/orange. no visible blood. stool culture/o&p = neg.

2 doctors weighed in across 2 answers
Dr. Mark Scheier answered

Specializes in

No: These drugs are used for liver failure. Liver failure, can cause smelling stools, especially with high ammonia levels.

Answered 10/23/2013


Dr. Martin Raff answered

Specializes in Infectious Disease

Stools: The color, odor, consistency, etc. Of stool can be changed by anything taken orally. This is usually dietary materials, but drugs also possible. Not probiotics which generally make stools like those of breastfed babies and are not malodorous.

Answered 7/8/2018



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A member asked:

My baby's stool looks and smells like it has blood in it, should I be worried?

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