Young teenagers who use acetaminophen (Tylenol) even once a month develop asthma symptoms more than twice as often as those who never take it. This reported by the International Study of Asthma and Allergies in Childhood (ISAAC) based on data from over 322,000 children age 13 and 14 from 50 countries. Frequent users also had more eczema, eye and sinus problems - coincidence???
Acetaminophen interferes with glutathione production, the major detoxifying amino acid in our bodies - that is a fact as well.