Displaying 4 results of Eluxadoline Stable Isotopes Eluxadoline is a medication used to treat irritable bowel syndrome with diarrhea. Stable isotopes of eluxadoline are used in clinical pharmacology studies to measure drug absorption, distribution, metabolism, and excretion. These isotopes, which are non-radioactive and do not pose a health risk, allow researchers to track the drug's journey through the body and better understand its pharmacokinetics and pharmacodynamics.