We’re talking joint injections, I think, which is really a major problem.
Used properly, with rest and associated care, there’s nothing wrong with a joint injection. What you see too much of in racing, however, is horses with out and out chips in their joint, and severe arthritis (“bone on bone”) being given joint injections, then raced on those compromised joints. When the horse can’t feel the pain, he goes out and runs a lot harder and faster than he would otherwise (further trashing the joint in the process).
Think “well, we found the horse had four chips in his knee, so we injected him and raced him again twice.”
I think medication rules need to get a lot more strict. For sure there is a time and place to use medications and drugs for the health and welfare of the horse, but there’s a ton of abuse out there. Bute is all well and good, but I’ve seen horses that were lame enough with enough problems to be put down walk remarkably well when given bute for a few days of comfort. It’s a more powerful drug than it’s often given credit for, and can certainly get a “sore” horse (which I’ve learned can mean everything from muscle sore to having fractures) through the pre-race lookover by the vet.
Lasix is over-used as well, IMO. There was some evidence presented at the congressional hearing a few years back that its use to stop bleeding may actually be limited, but that there is evidence that it can act as a performance enhancer in horses who don’t bleed.
Anabolic steroids get more “recognition” by people as a performance enhancer, so it’s easy to get folks worked up about it. Joint injections and other drugs that are “therapeutic” - well it’s harder to get peoples’ attention even though the abuse of these is far more serious from a horse welfare standpoint.
Just my opinion, of course.