Pepto-Bismol's hidden power: reshaping your gut microbiome?

NCT ID NCT05930197

First seen Mar 27, 2026 · Last updated May 01, 2026 · Updated 5 times

Summary

This study looked at how bismuth subsalicylate (the active ingredient in Pepto-Bismol) changes the bacteria in the gut. 34 healthy adults took the medicine for 2 days and provided stool samples over several weeks. The goal was to understand how this common over-the-counter drug affects the gut microbiome.

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Contacts and locations

Locations

  • National Institutes of Health Clinical Center

    Bethesda, Maryland, 20892, United States

Conditions

Explore the condition pages connected to this study.