HIWU will oversee testing, educate stakeholders on the new program, accredit laboratories, investigate potential violations, and prosecute any such violations.
The Horseracing Integrity & Welfare Unit (HIWU) was established in 2022 by Drug Free Sport International to administer the rules and enforcement mechanisms of the Horseracing Integrity and Safety Authority’s (HISA) Anti-Doping and Medication Control (ADMC) Program. The ADMC Program, which will be effective as of January 1, 2023, will create a centralized testing and results management process and
07/10/2026
Because supplements are not regulated in the same way that drugs are, their safety, effectiveness, and the ingredients present may not be consistent. It's important to conduct due diligence before adding a supplement to your horse's diet. Check out our video below to learn more: https://www.hiwu.org/education-and-resources/whats-the-scoop-on-dietary-supplements
07/09/2026
Lasix remains permitted in non-stakes races for horses three and up. It is prohibited in stakes races and races for 2-year-olds. To learn more, view the flyer below.
https://www.hiwu.org/education-and-resources/the-use-of-lasix-under-the-admc-program
07/02/2026
Beat the heat! Electrolytes can be a helpful tool to support horses in hot weather. HIWU reminds horsemen and veterinarians of regulations regarding the administration of electrolytes within 48 and 24 hours of a race or Vets’ List workout: https://www.hiwu.org/education-and-resources/HIWU-electrolyte-guidance-062424
06/30/2026
HIWU's Q1 2026 Report is available now. This Quarterly Report covers testing statistics, results management, and case adjudication details from January 1 through March 31, 2026. Read the full report here: https://www.hiwu.org/about/reports-and-statistics/hiwu-admc-program-statistics-q1-2026
06/29/2026
Good stable hygiene practices are essential to reducing the risk of exposure to Prohibited Substances. Educational posters are available on the HIWU website for printing and posting in barns, or horsemen can email HIWU directly for free copies at [email protected].
https://www.hiwu.org/education-and-resources/stable-hygiene-posters
06/26/2026
You asked, we listened! The HIWU website includes a searchable view of both pending and resolved cases. This update makes it easier to access case information and stay informed about ADMC Program activity.
Explore pending and resolved cases here: https://www.hiwu.org/cases/search-cases
06/24/2026
Don’t forget! HIWU educational resources are also available in Spanish. Visit www.hiwu.org/education-and-resources to access translated materials of the Anti-Doping and Medication Control Program.
06/23/2026
Ask HIWU: Out of Competition Testing Trainer Michael Lerman writes in to 'Ask HIWU' about their procedures for Out of Competition testing, and to understand why they were made.
Michelle Pujals Retires as General Counsel; Janelle L. Winston Named Successor
06/11/2026
Have questions about Out-of-Competition Testing? Learn more about how testing selection notifications are issued, what samples are collected, what participants can expect under HISA's ADMC Program, and more:
FAQ: Out-of-Competition Testing - HIWU Under HISA’s Anti-Doping and Medication Control (ADMC) Program, Out-of-Competition (OOC) Testing will be administered nationwide by the Horseracing Integrity & Welfare Unit (HIWU). HIWU will implement and enforce intelligence-based testing strategies to promote the integrity of Thoroughbred racing...