I adopted a new cat and noticed she was scratching a lot. I got the harts flea drops and put it on her, immediately she went and hid. I thought she was just mad I had put something on her, but the rest of the night she was very standoffish. The next morning I noticed she was still acting weird, and when she scratched a BUNCH of hair came off. I looked up the medicine and saw the terrible things online, immediately I washed it off and called the vet. Thankfully the vet said she was going to be ok. He also said they Do Not recommend hartz brand whatsoever. Since then her hair has stopped falling out but she is left with big bald spot on her neck from the flea stuff. I’m hoping she will be fine. And from the things I’ve seen online she was lucky, compared to some other animals. It is appalling that they are allowed to sell this dangerous product in store. I guess all I can do is spread the word,and hope it can help other people from buying this.