File:Acetaminophen metabolism.jpg Wikimedia Commons N Acetyl Cysteine Functions as a Fast Acting Antioxidant by Triggering Intracellular H2S and Sulfane Sulfur Production: Cell Chemical Biology Frontiers Glutathione: Pharmacological aspects and implications for clinical use in non alcoholic fatty liver disease The mechanism of action of N acetylcysteine (NAC): The emerging role of H2S and sulfane sulfur species ScienceDirect Mechanism of Action of Acetylcysteine N ACETYLCYSTEINE (NAC)