Race Day Medications Hiding Possible Trouble?

[2MinsToPost]

Randy Moss on espn just now brought up an intersting thought. He feels that all race day medications should be rid of and thus if a horse has a problem instead of it being hid by the medications it can be adressed natures way thus the trainer, etc can decide on scratching, etc..

He made it a point to say he did not think that was the case with Eight Belles. Is North America the only country that allows race day medications?