Is Tylenol Safe During Pregnancy? Risk Factors, Not Causation Chronic Glutathione Depletion Confers Protection against Alcohol induced Steatosis: Implication for Redox Activation of AMP activated Protein Kinase Pathway Scientific Reports Tylenol's Impact on Glutathione and Liver Damage The parent compounds of acetaminophen (US market in 1955 in the US as Tylenol and other products) were first discovered in 1886 (acetanilide) and 1887 (phenacetin). These were the earliest synthetic fever