Is Tylenol Safe During Pregnancy? Understanding Risk Factors Seeking Health Figure 1: CMAJ Biochemistry Metabolism of acetaminophen (paracetamol) . Acetaminophen is widely used as a painkiller. Taken in the usual therapeutic doses, it is Instagram 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 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 & Sex differences in glutathione metabolism and acetaminophen toxicity