Nitroprusside and cyanide.
D000818:Animals; D003486:Cyanides / Q000097:blood*; D004285:Dogs; D004912:Erythrocytes / Q000032:analysis; D005292:Ferricyanides / Q000378:metabolism*; D006801:Humans; D009599:Nitroprusside / Q000378:metabolism*
D003486:Cyanides; D005292:Ferricyanides; D009599:Nitroprusside