Interesting article with the list of trainers proposing to phase out Lasix starting as early as 2015. Quotes from both sides of the fence
U.S. Trainers respond to proposal supporting furosemide phase-out (https://www.thoroughbredracing.com/articles/us-trainers-respond-proposal-supporting-furosemide-phase-out) on Thoroughbred Racing Commentary - thoroughbredracing.com