Vital Signs · medicine

Filed by Dr. Iris Vale

Common medications may reshape the gut microbiome long after the last dose is taken. In a study of more than 2,500 people, researchers found lasting microbial changes linked not only to antibiotics, but also to antidepressants, beta-blockers, acid-reducing drugs, and benzodiazepines. Some effects were still detectable years later, suggesting past medication use may strongly influence the gut bacteria people carry today.