HISA's mission is to protect the integrity of competition and the welfare of horses in the Thoroughbred racing industry. The Banned Substances list, set forth under HISA's Anti-Doping and Medication Control (ADMC) Program, is one of the many ways HISA advances this mission. Under HISA's ADMC Program, substances with no legitimate, medically justified use in Thoroughbreds are among those classified as Banned Substances, just as they are under the anti-doping programs being run by other equine sports' governing bodies. Many "non-approved substances" on the Banned Substances list have not been...