Gut Changes Persist Years After Stopping Certain Medications
12th October 2025
The body clears medicines within hours to weeks. However, a recent study suggests that drugs you took years ago may continue to affect your gut—and the more frequently and the longer they’re used, the greater their effect.
Nearly nine out of 10 commonly used medications leave permanent changes in gut bacteria – including drugs never before linked to digestive effects, according to the study.
This holds true not only for antibiotics but also for drugs used to manage high blood pressure, anxiety, and stomach hyperacidity.