As a naturopathic doctor and a mom, Tylenol is a hard no in my house and I want to explain why. , , Acetaminophen (Tylenol) is processed through the liver, and in that process it can lower Acetaminophen causes neurodevelopmental injury in susceptible babies and children: no valid rationale for controversy Acetaminophen at low doses depletes airway glutathione and alters respiratory reflex responses Smith 2013 The FASEB Journal Wiley Online Library 05. Acetaminophen Toxicity Hospital Handbook