Arturo Chavez

Every week, the TDN posts a roundup of the relevant Horseracing Integrity and Safety Act (HISA) -elated rulings from around the country. Among this week's rulings, trainer Pavel Matejka has been suspended seven days for four separate cannabidiol (CBD) positives. The four cases occurred between Feb. 17 and Mar. 15. Under HISA, CBD is classified a Class B controlled substance. The massive proliferation in CBD products for humans has spilled over into the equine world. The purported benefits from CBD use in horses include treatment of inflammation, ulcers, laminitis, colic,...