Have a quiet mare, super easy going but when time to enter the arena to run barrels is a fire breathing dragon. Any recommendations on a product to ease her anxiety? No ulcers, performance vet checked and no issues. Don't want a product that has to be fed daily. Give me your thoughts and experience 

Can you tell us more?

Is she completely uncontrollable?

Rearing?

Freaking out?

Spinning away from the gate? Refusing to go in?

Etc?

I personally don't have a problem if they are a "fire breathing dragon" because that just tells me they are amped up to do their job, excited to do their job, and that's a good thing. UNLESS you're talking about other undesirable things, so being more specific would help.

If she is just simply on-the-muscle, then let her!

Without more information, I'd say haul her more to see the sights before you start looking for a medicinal cure. If you've exhausted hauling her, then try a herbal supplement first.

I would make sure she isn't sore first. Once that is ruled out then try a good calming supplement. I personally have had good results with THE Total Calm and Focus powder and cookies. It does not take the run out but should take the edge off. 

Also, do you keep her away from the arena until its your turn? I found with my mare- who is hotter than your mare based on what you've said - isn't one to just hang around waiting by the arena. I keep her away and don't move towards the arena until it is our turn. 

Guanabenz. No use suffering from performance anxiety when there's a perfectly safe medical solution. Don't let the naysayers talk you out of it because I'm sure they take aspirin for a headache. 

Legit 100% 

Medicine is there for a reason.....

guanabenz!

This.

How would y'all compare guanabenz vs. chlorapromazine for a situation like this? I've always reached for chlorapromazine. 

Guanabenz has s very short acting. 
Me? I'm ready to try a sledge hammer. Anybody want to buy a mare?