There are many illegal drugs out there which regulators know about. In some instances, regulators do NOT alert horsemen about them in an effort to try to catch cheaters.

Illegal drugs are coming out of human trials on an ongoing basis for chemists.Some of this stuff ends up on farms and are experimented with as to its efficacy in becoming PED's for racehorses.

If you spoke to regulators, and they were totally honest, they would tell you they are up against it.