Every week, the TDN posts a round-up of the relevant Horseracing Integrity and Safety Act (HISA) related rulings from around the country. Among this week's rulings, trainer Efren Loza, Jr. has been banned 18-months and fined $12,500 after his trainee, Mexicoffee, tested positive post-race for clenbuterol after finishing second at Gulfstream Park on Feb. 14. Loza's suspension began Apr. 17 and lasts until Oct. 16, 2025. Clenbuterol, a banned substance under HISA, is a bronchodilator with a checkered history in both human and equine sports due to its anabolic properties--in...