I feel awful. I have 3 cats and 4 children. I bought Hartz because I didn’t know about it’s harmful affects on cats and the horrible things it can do. I actually bought the collar as a temporary fix until i could get the drops for the neck. I also bought the powder for the floors and furniture as well as the shampoo. All of these items I have now thrown away…. although I would like my money back since they’re so disgusting! I will have to call the company. At any rate… my male cat Jinx started falling off of furniture when he’d jump up to lay down, would randomly not be able to to catch himself, was acting very very weird. Thankfully, I was able to give him lots and lots of water, and we’ve had tons of puddles when he’s outside. It really hasn’t affected my other two cats, but I’m still keeping a close eye on them. It’s been over a month now since I”ve used ANY of the hartz products, but a little while ago I used Bio spot shampoo, not realizing that it too can be harmful to my cats. I will NEVER buy anything not suggested by a vet again. Even on our VERY tight budget I’ll find away to keep my babies protected with the safer products. Also, we have been using a natural spray which seems to help. I really hope that more people become aware of this site and the harmful things that Hartz products can do. I don’t have any pictures since my cats didn’t really have any visible things happen. Oh I forgot, my cat jinx got really badly matted fur, and so we had to shave him becuase it was soo bad… it scared me. This was AFTER using the hartz products.