Bestimmte Arten von Antibiotika können noch vier bis acht Jahre nach der Behandlung mit Veränderungen im Darmmikrobiom verbunden sein

>In the study, the researchers analysed drug register data alongside a detailed mapping of the gut microbiome of 14,979 adults living in Sweden. The gut microbiome was compared between participants who had received different types of antibiotics and those who had not received any at all during the period

> **The researchers found that the results differed substantially depending on the type of antibiotic used.** The strongest associations were observed for clindamycin, fluoroquinolones and flucloxacillin. By contrast, penicillin V, the most commonly prescribed antibiotic for the treatment of infections outside hospitals in Sweden, was linked to small and short-lasting microbiome changes.

[Antibiotic use and gut microbiome composition links from individual-level prescription data of 14,979 individuals | Nature Medicine](https://www.nature.com/articles/s41591-026-04284-y)