My wife and daughter applied a vial of K9 advantix II to our 7 year old Shetland Sheepdog. Less than an hour later he was lying in the back of his crate, non responsive and catatonic. They dragged him out and he eventually livened up a bit. Has anyone else seen this reaction in their dog(s)? The vet switched us from Frontline a while back and a quick search of the internet showed others reporting this and more severe neurological reactions and skin reactions too.
Note the phone number to call to report the reaction