PDF] Evidence that Increased Acetaminophen use in Genetically Vulnerable Children Appears to be a Major Cause of the Epidemics of Autism, Attention Deficit with Hyperactivity, and Asthma Semantic Scholar Problem 2 n acetyl para benzoquinone napqi is an oxidized Sex differences in glutathione metabolism and acetaminophen toxicity Metabolism of Paracetamol (Acetaminophen), Acetanilide and Phenacetin Medicinal Chemistry PharmaXChange.info 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