A few couple years back, DR. Fishman was was warning clients SFG 1000 his gogo juice, may produce a false Dex. positive. We have seen a rash of Dexamethasone positives lately. No trainer or vet. who has spent anytime in this game thinks they can get Dex past the test. I seriously doubt these test are the result of a Dex. overage or to close to race time.