The name Doc Ackerman sounds familiar, but maybe from seeing it in catalogs? I have no experience with it. I tend to use products that are made for humans. But if you find one that works, definitely stick with it!
I gave this product to another member with a rescue pup who has anxiety while crated issues. Pup had parvo before she adopted her, now 4 mos. The pup is generally afraid of everything. I hope she has good results with it.
better link with products: http://search.onlynaturalpet.com/?searchterms=Doc-Ackerman's