HIWU advisory re: Adenosine, Hemo 15 — use and possession are prohibited
Unedited horsemen’s advisory from HIWU (Horseracing Integrity & Welfare Unit):
JUN 11, 2025
In recent months, 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. 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. Hemo 15 and any compounded product mimicking Hemo 15, as well as any products containing adenosine, adenosine monophosphate (AMP), or adenosine triphosphate (ATP)* should be disposed of immediately.
As a reminder, the Presence, Use, Administration, Possession, or Trafficking of any Banned Substance is subject to a period of Ineligibility of up to two years, a fine of up to $25,000, the disqualification of race results (as applicable), and public disclosure.
Horsemen or veterinarians with questions should reach out to sciencesupport@hiwu.org.
*Adenosine is also a component of AMP and ATP.
