
Effective immediately, horsemen are urged to discontinue the use of any and all adjunct bleeder medications for horses in training, including in particular, aminocaproic acid—commonly called Amicar.
Amicar and several other adjunct bleeder medications were placed on the Prohibited List in 2013 under the Association of Racing Commissioners International Uniform Classification Guidelines for Foreign Substances and Recommended Penalties Model Code and the National Uniform Medication Program. Aminocaproic acid, for example, is a Class 4 substance and penalty Class C.




The MTHA will hold a public meeting Thursday, October 22, 2026, at 11 a.m. Eastern Time via Zoom to discuss a proposed digital auction process for horses receiving two or more claims in a claiming race.

An October 7 Daily Record article about proposed Maryland Racing Commission regulations has generated questions about increased penalties, medication enforcement and the state’s investment in Thoroughbred racing.
