The Pennsylvania State Horse Racing Commission (PSHRC) has rescinded an Aug. 18, 2022, ruling against trainer Jamie Ness that suspended him six months and fined him $5,000 for a positive drug test for bufotenine in a winning horse at Parx. Bufotenine is a psychoactive substance often referred to as "toad venom" because one of its sources is the skin of toads from the genus Bufo. In humans, it has been used for centuries in traditional forms of medicine as both a hallucinogen and a purported aphrodisiac. Starting in the 1990s,...