The FDA is signaling that perhaps immediate treatment with acetaminophen is less clearly needed for a low grade fever, especially in pregnancy, unless theres a stronger indication for it., Safer Acetaminophen causes neurodevelopmental injury in susceptible babies and children: no valid rationale for controversy Just say NO to Tylenol Tylenol, Autism, And The Glutathione Connection OC Integrative Medicine 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 &