Kilderne til cyanidforgiftning omfatter hydrogencyanid og dets salte, cyanogener, herunder cyanogene planter, alifatiske nitriler og langvarig eksponering for natriumnitroprussid.
Sources of cyanide poisoning include hydrogen cyanide and its salts, cyanogens, including cyanogenic plants, aliphatic nitriles, or prolonged exposure to sodium nitroprusside.