toxicology

The cause of GI Kentucky Derby winner Medina Spirit's (Protonico) sudden death on Dec. 6 at Santa Anita remains undetermined, according to the findings of a necropsy on the horse. In a news release issued in tandem with the necropsy report Friday, the California Horse Racing Board (CHRB) stated that a "definitive cause of death was not established despite extensive testing." As per the CHRB news release, while omeprazole—an anti-ulcer medication—and the ubiquitous diuretic Lasix were detected in blood and urine samples, these findings were consistent with the medication report filed with CHRB...