Liver injury induced by paracetamol and challenges associated with intentional and unintentional use Can I give Tylenol (acetaminophen) to a patient with elevated aspartate aminotransferase (AST) alanine aminotransferase (ALT) levels? 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 & Episode 203: Acetaminophen Toxicity Core EM 5 Oxoprolinuria as a Cause for Metabolic Acidosis Renal Fellow Network