""Capsaicin is used in human medicine as a pain killer, but in horses is applied as a paste or lotion to the animals’ legs to make them hypersensitive as its immediate effect is to make the skin burn, Paul Farrington, associate member of the FEI’s veterinarian committee, told AFP.
Its use seems to be like a chemical form of rapping, an illegal activity in which horses’ forelegs are hit to bruise them, so they will avoid knocking the fences.
FEI’s secretary general Alexander McLin said the B tests for the positive horses would be completed in coming days, but not soon enough for any of the riders to compete in the final.
“The policy is that it is preferable to stop riders from competing rather than disqualifying them afterwards,” McLin said.
The stunning development casts yet another shadow over equestrian events generally as it follows a medal re-allocation in Athens, also for doping.
It also casts doubt on the future of equestrianism as part of the Olympics.
The doping scandal also puts show jumping under the microscope once more.
A doping scandal cost Germany the team jumping gold in Athens after the horse ridden by Ludger Beerbaum, who is a lynchpin of his country’s team here, was disqualified after testing positive for doping.
World number one, Meredith Michaels-Beerbaum, was left off the German team for Athens after her horse tested positive, though she was later cleared.
“This is certainly a serious blow to the sport and we are well aware of the possible implications for the sport and its position in the Olympics,” said Sven Holmberg, chairman of the FEI’s jumping committee.
“The four cases tested positive for the same substance. I don’t know if we can say it’s a trend but it contributes to the seriousness of the case.”