"Ordinary treatment for such poisoning is gastric lavage, a purging of the stomach and intestines with quantities of milk and eggs. But it must be done quickly and at best one victim in four dies. Survivors often have permanently damaged kidneys. Dr. Rosenthal's antidote is sodium formaldehyde sulphoxylate, which changes the poison into less toxic mercurous compounds. It is administered through a stomach tube and intravenously. Dr. Rosenthal has saved every one of ten acutely poisoned humans, without appreciable kidney damage, hopes hospitals throughout the land will test his foil for suicides."
http://205.188.238.109/time/magazine/article/0,9171,787868,00.html