FDA Seeks Information on N-acetyl-L-cysteine (NAC)

 N-acetyl-L-cysteine (NAC) is widely available as a dietary supplement and is also used to treat acetaminophen (Tylenol) poisoning and other conditions, such as lung collapse.  In July 2020, the U.S. Food and Drug Administration (FDA) sent warning letters to seven companies about products containing NAC.  FDA’s July 29, 2020 Constituent Update explains that claims to... Continue Reading