[HairOfTheDog]

Is this it? It doesn't say steroids though, it's some kind of a substance found in some topical ointments.

Four Olympic Show Jumpers Disqualified For Failed Drug Tests. 2008 Olympic Equestrian Events In Hong Kong. | Regarding Horses

[PayNoAttentionManBehindCurtain]

That might be it, but last night one of the commentators specifically said steroids. Maybe he had it wrong.