You\'re right regarding the \'caines, they are usually vet-administered (or should be). But clenbuterol, \'bute, etc. is staff-administered.
Edit: And the staff (assistant trainer) are indeed 100% responsible for knowing the withdrawal times of all drugs, including those given by the vet.
It\'s basic racetrack 101. Drugs have withdrawal times. Here\'s the list of those times. It\'s no secret.
So if a vet injects a joint, does a nerve block, sutures a wound, etc, yes, everyone involved needs to pay attention to the withdrawal time.
I can tell a trainer not to run a horse for X days due to withdrawal, and they may or may not listen.
If they chose not to, then they risk the positive, and it sure as hell isn\'t my fault.
I ask all the time if the horse is coming up to a race before giving a drug during a procedure. Some trainers will lie to you and they will try to cut it close secretly.
If the vet doesn\'t mention a withdrawal, it is still incumbant upon the trainer/assistant to ask what drugs were given during a procedure if the horse is coming up to a race.
So yes, I place alot of blame on this particular trainers \"barn corporate culture\", one that apparently plays fast and loose and casual with paying attention to drug withdrawal times.
Obviously not very important to them.