Glutathione is such a critical soldier in our line of defense that our bodies make it themselves. We even have mechanisms that recycle and reuse it. But what happens when our toxic Reactive metabolic byproducts contribute to antibiotic lethality under anaerobic conditions: Molecular Cell What Is Glutathione? Purifi IV Glutathione: Master Antioxidant, Reducing Oxidative Stress, and Detoxification