> Unless he has found some other clever way that he is for some reason pretending is Xenon.

Meth. It's meth.

In the 1991 film K2, Michael Biehn's character used an epinephrine (adrenaline) auto-injector (in his neck), which had recently been marketed and was seen by some wealthy as a booster. This actually increases risk for arrhythmia and makes pulmonary edema worse, so ironically meth would be a preferred booster.

https://en.wikipedia.org/wiki/K2_(film)

https://en.wikipedia.org/wiki/Epinephrine_autoinjector

https://www.outsideonline.com/health/training-performance/co...