[web]https://news.bbc.co.uk/sport1/hi/olympic ... 574220.stm[/web]
Olympic horses fail drug tests
from the wiki page ( https://en.wikipedia.org/wiki/Capsaicin ) it seems that capsaicin is basically a heat-rub for sore muscles. I suppose that is performance-enhancing in a sense, but it's hardly a gram of coke!