Attacks of uncontrollable coughing or "whooping", often relating to whooping cough or bronchiectasis, but they can also be caused by the smoke from burning plastics and (memories of yesteryear) hash ...
It is the waste product of creatine, an enzyme found in large amounts throughout the tissues, and mainly excreted in the urine. The parent compound creatine enables the body to use the "blue flame" ...