Convert the iron in hemoglobin from the ferrous to the ferric form, creating methemoglobinemia. Then, the thiosulfate can become sulfate donor, allowing conversion of cyanide to readily renally excretable form
Amyl nitrite
Sodium nitrite
Methylene blue
Methyl isocyanate
Sodium thiosulfate
Selenium sulfide
Iodoquinol
Trientine