Acetaminophen's Role in Autism and ADHD: A Mitochondrial Perspective g glutamyl cycle. Depletion of glutathione by acetaminophen leads to Download Scientific Diagram 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. 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: