Show Jumper Cian O’Connor was stripped of his gold medal at the 2004 Athens Olympics. O’Connor didn’t do the jumping himself. The Irishman is an equestrian, who rode a horse named Waterford Crystal. In competition horses also get tested for illegal drugs, and at the Athens Games, traces of various anti-psychotic and pain relieving drugs were found in Waterford Crystal.
So yes, Jane Fonda, they do shoot (up) horses.
Apparently, anti-pscyhotic drugs like fluphenazine are commonly used to calm horses, particularly in cases when horses have been injured and completed treatment, but won’t stay calm and allow their wounds to heal. Another drug like reserpine acts as a long-lasting sedative, which is likely prescribed for similar reasons as fluphenzine. They were likely in Waterford Crystal in order to calm this excitable horse and thus give the rider a more stable mount in competition.
Clearly the horse has no say in the matter. The team around the horse, including the rider and the trainer, are held accountable for what goes in the body of the horse. About a year after the Athens Olympics, O’Connor had to return his gold medal, and Rodrigo Pessoa of Brazil became the new showjumping king, trading his silver for gold. Chris Kappler of America got to trade his bronze for silver, and suddenly, Marco Kutscher of Germany was awarded a bronze medal.
Four years later in Beijing, a horse named Camiro was found to have the illegal pain killer, capsaicin, in her system. Camiro was the horse of rider Tony Andre Hansen, who was one of four members of the Norwegian jumping team. Camiro apparently failed the first of two drug tests so Hansen was not allowed to compete in the individual jumping event, but was allowed to compete in the team event, at which Norway took the bronze medal.
The Norwegian team stood on the medal podium and sank in the cheers and congratulations. Ten days later, after the Beijing Games had completed, Camiro failed a second test. With Hansen’s horse now DQ’ed, the Norwegian team dropped from third to tenth in the point totals. The four members of Team Switzerland were suddenly bronze medalists.
As for Cian O’Connor, eight years later at the 2012 Olympics, he was able to ride a horse named Blue Loyd 12 to the medal podium, taking the bronze medal in the London Games.