The Horseracing Integrity and Safety Authority called for potential researchers to prepare research proposals on the administration of furosemide, still commonly called Lasix in racing, to Thoroughbred racehorses during the 48-hour period before the start of a race, the organization said in a release Thursday evening. The call for proposals is expected to be released Sept. 1. As the Authority was created by the Horseracing Integrity and Safety Act (HISA) of 2020, it is mandated by Congress to include at least one study on the use of furosemide. Included in...