Adrenochrome's history is intimately tied to its identity as a metabolite of epinephrine. In Canada, it is rumored that during World War II, supplies of fresh adrenaline sometimes ran short. In emergencies, when some patients had to be given adrenaline from old stock -- adrenaline that had oxidized and turned slightly pink -- they experienced temporary hallucinations. This may have led to the legend of "pink adrenaline." This effect is substantiated today by product inserts in injectable epinephrine products which warn, "Do not use if it is pink, brown or contains precipitate. Epinephrine is sensitive to light and air, and is unstable in 5% dextrose.

It's pure adrenaline that's gone off. "Pulp Fiction - Giving her a shot of adrenaline to the heart" or something.