Yes there is good evidence that acetaminophen (the active ingredient in Tylenol) can deplete glutathione under certain conditions. But whether that matters depends on dose, duration, and individual factors. Researchers are studying a possible link between acetaminophen (Tylenol) use during pregnancy and higher autism or ADHD risk. It may lower glutathione, an important antioxidant for brain development. Tylenol and glutathione, actually explainedhere's the bullet points: * Lots of concern raised on social media re: glutathione depletion and acetaminophen use * Glutathione is used in the metabolism of acetaminophen and A Possible Antidote for Tylenol (Paracetamol) Overdose American Council on Science and Health