What Lasix is used for?
Lasix was often used to decrease blood pressure and help prevent bleeding.
I'm sure you know that many people use furosemide (Salix, Lasix). It's the same. This medication is/was routinely to help prevent bleeding in horses suffering from EIPH (Exercise Induced Pulmonary Hemorrhage). In cases, a dose of was given and water is withheld before competition in order to prevent bleeding.
The goal now is a complete elimination of Lasix by July 1, 2022, when the Horseracing Integrity and Safety Act is set to take effect. It will enact national rules on medication and doping that would replace the patchwork that exists in 38 racing jurisdictions around the country.