Lasix is used to prevent bleeding in the lungs.
The stress of running sometimes causes cappilaries in the alveoli to rupture.
Then the horse bleeds. It's a preventive medication, and completely legal.
It's usually administered four hours before the race.
It also calms the horse.
First time lasix is something that a lot of cappers look for.
Fom my own experience...the first time one of mine ran with it, he finished dead last, but it was given only two hours before the race...
he must have been a bit "high". LOL
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