Brightening skincare combo For different skin conditions All items are available for sale GSH reduces NAPQI, the metabolite responsible for hepatotoxicity in acetaminophen toxicity. Toxic doses increase oxidation into NAPQI, overwhelming glutathione. How does ethanol interfere with acetaminophen metabolism? Image: https: t.co 6EY9dIwLXY Myth busting, Acetaminophen version. "Avoid Acetaminophen (Tylenol) because it causes glutathione depletion". Truth?? As a pediatrician and ER doctor and as moms we're often asked about this. And we understand why: Glutathione You Are The Healer 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.