However, conventional antibiotics are generally bacteriostatic or bactericidal, which means that they indiscriminately kill or prevent the growth of both pathogenic and beneficial microbes.

Synthetic, bactericidal antibiotics - like fluoroquinolones - damage mitochondria and lead to oxidative stress and disease.

First, because the bactericidal mechanism is completely different from the way antibiotics work, it is effective against multidrug-resistant bacterial infections.