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 & Interaction with Ethanol Alcohol Metabolism Acetaminophen at low doses depletes airway glutathione and alters respiratory reflex responses Smith 2013 The FASEB Journal Wiley Online Library Deciphering Acetaminophen Induced Hepatotoxicity: The Crucial Role of Transcription Factors like Nuclear Factor Erythroid 2Related Factor 2 as Genetic Determinants of Susceptibility to Drug Induced Liver Injury Drug Metabolism and Disposition NAPQI Wikipedia