Here is an idea suggested by Barry Irwin who is the President of Team Valor:
"Allow no vets or horsemen to possess any medication, legal or not. If vets want to prescribe drugs, they must buy them directly from the racing association and inform the state vet which horses will receive them and for what exact purpose. Anything found in a horse's system that did not come from the medicine chest of the track would result in harsh penalties for both the vet and the trainer."
For those that want to read the entire article, here is the link:
http://opinions.bloodhorse.com/viewstory.asp?id=36701