Drug Testing


Truesdail Laboratories has tested in the area of racing chemistry for over 70 years, analyzing tens of thousands of biological specimens per year for the presence of performance altering and therapeutic drugs. In addition to testing racing animals (equine and canine), we test for horse and livestock shows and exhibitions. Truesdail uses state-of-the-art instrumentation to provide highly sensitive screening and identification for a vast variety of drug compounds.

Our Drug Testing Laboratory has extensive cross training in each key area including UHPLC/HRMS, LC/MS/MS, GC/MS, ICP/MS, and immunoassay operations. All of our chemists and technicians are thoroughly trained analysts and chain-of-custody protocols.

Truesdail currently performs animal drug testing for many U.S. states – Arkansas, Delaware, Idaho, Maryland, Nebraska, Nevada, New Jersey, Oregon, Washington, and Wyoming — and the countries of Mexico, Panama, and Columbia.  Additionally, we provide split-sample testing to almost every racing jurisdiction in the U.S. and several foreign countries.  The U.S. map below color-delineates the states where Truesdail has, or is currently, conducting testing.

Our procedures are reviewed and accepted under our accreditations for ISO/IEC 17025, ILAC G-7, and RMTC. Since 2009, Truesdail Laboratories is fully accredited to ISO/IEC 17025 for all parameters required by drug testing programs. In 2013 Truesdail was the first lab in the U.S. to add Cobalt analysis onto our ISO/IEC 17025 scope. In 2014 Truesdail was one of the first five U.S. labs to receive accreditation from Racing Medication and Testing Consortium (RMTC). Our Technical Director, Dr. Anthony Fontana, and Chief Science Officer, Dr. Norman Hester continue to serve on the RMTC’s Scientific Advisory Committee.

Our staff’s experience in drug testing, coupled with our forensic science expertise, enables us to give “expert witness” testimony at hearings and in court cases. We have done so in dozens of cases in Arkansas, California, Kentucky, Oregon, and Indiana.

Jurisdictions Serviced

Truesdail has provided services to almost every major horseracing jurisdiction in the U.S. We are dedicated to upholding a clean and healthy sport, working closely as members of the RMTC Scientific Advisory Committee. Truesdail has several employees who are members of the Association of Official Racing Chemists (AORC). Below is a map of Truesdail’s past and current clients.

  • States that have or are currently using Truesdail’s services.
  • States that never used Truesdail’s Drug Testing Services.
  • States that do not have dog or horse races or use internal or University testing laboratories.