Is Tylenol Safe During Pregnancy? Understanding Risk Factors Seeking Health 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 & Oxidative stress mediates end organ damage in a novel model of acetaminophen toxicity in Drosophila Scientific Reports Acetaminophen at low doses depletes airway glutathione and alters respiratory reflex responses Smith 2013 The FASEB Journal Wiley Online Library Acetaminophen's Role in Autism and ADHD: A Mitochondrial Perspective