<unk> (oral) is an aminoacid that is FDA approved for the prevention of hepatic injury which may occur following the ingestion of a potentially hepatotoxic quantity of acetaminophen.   Common adverse reactions include pruritis, rash , utricaria, diarrhea, nausea, vomiting.
Acetylcysteine 
Magnesium aspartate
Fomepizole
Obidoxime
Pralidoxime
Calcium bicarbonate
Ammonium bicarbonate
Codoxime