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 & 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 Is Tylenol Safe During Pregnancy? Understanding Risk Factors Seeking Health Is Tylenol Safe During Pregnancy? Understanding Risk Factors Seeking Health