The second and minimal metabolic pathway consists of the reaction of cyanide with cystine to produce cysteine and β-thiocyanoalanine (Wooden and Cooley 1955). An antidotal blend of inhaled amyl nitrate and intravenous sodium nitrite and sodium thiosulfate tend to be indicated. The IPCS/CEC (1993) review of antidotes for cyanide poisoning famous