
07/24/2025
When the U.S. Equestrian Federation announced an extraordinary rule change to allow hair testing, it also released a new list of banned substances the test will target. Veterinarians say these drugs should never appear in horses fit to compete—and one, the barbiturate commonly used in euthanasia, should never appear in a living animal at all.
In late June, the U.S. Equestrian Federation announced an extraordinary rule change to allow the addition of hair testing for certain prohibited substances as a complement to the existing blood and urine testing protocols. When the hair testing went into effect on July 1, the organization published....