5 Antidote: NAC (N acetylcysteine) NAC replenishes glutathione, restoring the ability to detoxify NAPQI. It's lifesaving if given early. Example: Hospitals use NAC as the standard treatment for APAP overdose. NAC [N AcetylCysteine] is a precursor of Glutathione. PICTURE: Glutathione is made from three amino acids and cysteine is one of them 5 1. Glutathione and Lipoic Acid D&PS The Combined Antioxidant Effects of N Acetylcysteine, Vitamin D3, and Glutathione from the IntestinalNeuronal In Vitro Model