Bests & Worsts Reviews from Amazon

BOTH of my dogs (1 AKC GSD and one Rott/GSD mix) had allergic reactions to this product. The AKC became quite agitated, sides heaving, heavy panting, some foaming, running around the house and jumping on and off furniture, would not listen (and she is well behaved) - very unusual and alarming behavior for her. The Rott/GSD became quiet and withdrawn, hid from me behind furniture, ears down/tail down - very unusual and alarming behavior for him. Took the collars off the both dogs were pretty much back to normal in 12 hours. I was up - literally - all night with them. This product was recommended by my Vet due to my Rott/GSD's allergic reaction to flea bites - and I will never use it again. I do not know anyone else who has used it, and I do not what experience anyone else has had.