I put the flea collar on our dog as we live out in the country where ticks are very popular. A few weeks later our baby started acting weird, wasn’t her normal spunky self and had lost a lot of weight! We took her in and the vet said she had liver failure and asked if she had gotten into any of our human meds, which she hadn’t! I did mention the new flea collar and the vet blew it off! Our baby died a week later after iv treatments and lots of meds to try and help her recover!! Now seeing all of this I am certain it was the collar that poisoned her!!!