In recent months, the Horseracing Integrity & Welfare Unit (HIWU) has adjudicated several cases under the Anti-Doping and Medication Control (ADMC) Program related to adenosine, a vasodilator, and Hemo 15, a foreign product that lacks FDA approval, according to an advisory from HIWU, which says that neither substance has any valid veterinary use in the racehorse. "Both substances are categorized as an S0 Non-Approved Banned Substance and therefore are prohibited from Use in a Covered Horse or Possession by a Covered Person at all times," reads the advisory. "Hemo 15...