Jenny McCarthy's Glutathione and Tylenol Claims: Medical Toxicologist Weighs In About Acetaminophen Overdose Acetaminophen Toxicity: How Genetic Susceptibility Combines with Environmental Factors Some alternatives to consider before jumping to Tylenol! I want to emphasize that I think the fear surrounding Tylenol can be a little unnecessary and intense. I do believe there are times 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 &