The latest performance-enhancing drug for horses has been dubbed frog juice. It’s a painkiller that existing drug tests missed:
Then a lab in the Denver area tweaked its testing procedure, and in recent days more than 30 horses from four states have tentatively tested positive for the substance, dermorphin, which is suspected of helping horses run faster.
Why frog juice? It’s synthesized now, but it was originally extracted from South American frogs.