RMTC on Purple Pain and TB-500

RMTC reviews data on compounded medications.

Press Release
July 2, 2013


The Racing Medication and Testing Consortium Tactical Research Committee has reviewed data from laboratory analysis of two substances of concern in racing that have been marketed as powerfully effective drugs – “Purple Pain” and “TB-500.”

Both of these substances are non-FDA-approved and only available through compounding pharmacies. Accordingly, under the RCI guideline regarding unclassified medications and foreign substances, the RMTC recommends that any administration of these substances be treated as a prohibited act and that a finding for either substance or their metabolites be treated as a finding for a prohibited substance. As such, these substances should be treated as an RCI Class 1 substance with Class A penalty guidelines.

The results of these studies and additional information on those drugs was provided in recent bulletins issued by the RMTC to horse racing drug-testing laboratories, the Organization of Racing Investigators (ORI) and the Association of Racing Commissioners International (RCI).

Purple Pain is marketed as a pain reliever. TB-500 is claimed by some marketing materials to build muscle, speed muscle recovery, stop bleeding, increase red blood cells, and decrease inflammation.

“This effort is part of the RMTC’s renewed focus on identifying and detecting illicit substances and eliminating them from racing,” stated RMTC Scientific Advisory Committee co-chair Dr. Rick Arthur. “This type of work is intended to ensure the integrity of racing as well as the safety of the equine and human athletes.”

The University of California-Davis Kenneth L. Maddy Laboratory, an RMTC Accredited Laboratory, performed analysis on samples of both of these compounds. Those results were shared with the RMTC.

“We are grateful to the UC-Davis Kenneth L. Maddy Laboratory and the California Horse Racing Board for sharing this information with the RMTC,” said RMTC Chairman Dr. Robert Lewis. “The pooling of efforts allows the RMTC and all racing stakeholders to make limited funding dollars stretch further.”

The RMTC consists of 24 racing industry stakeholders and organizations that represent Thoroughbred, Standardbred, American Quarter Horse and Arabian racing. The organization works to develop and promote uniform rules, policies and testing standards at the national level; coordinate research and educational programs that seek to ensure the integrity of racing and the health and welfare of racehorses and participants; and protect the interests of the racing public.