Ladies and Gentlemen Furosemide, Salix, Lasix ect has been proven scientifically to be a performance enhancing drug. Anyone with just a bit of common sense could make an reasonable argument that the "reaction" to taking such a drug during physical exertion will probably be detrimental to overall health over time. An analogy might be the morning after cashing a big ticket at the Spa. I and others I know require ample recover time just to get back out there. By meets end? On the shelf ... Seriously though, its not good for the horse.