Tylenol Avoid or Not to Avoid? Acetaminophen (Tylenol) can deplete glutathione, your body's most important detox antioxidant. This matters even more if your child has an MTHFR gene mutation, which Acetaminophen, also known as Tylenol, is used to help with pain & to reduce fever. However, taking too much acetaminophen can be harmful to the liver which filters out toxins & Does Acetaminophen Deplete Glutathione? Understanding the Connection Cymbiotika CYMBIOTIKA Acetaminophen at low doses depletes airway glutathione and alters respiratory reflex responses Smith 2013 The FASEB Journal Wiley Online Library