yes. Dose and formula could be too strong or not balanced for a cats PH etc...
I certainly hope not. Horses are so much larger than even the biggest breed of dog. Horse wormer could kill a dog. I'm not sure about the 'cheaper' part either. Horse dewormer is expensive, possibly more so than dog wormer. Always consult your vet when it comes to the health of your pets, whether it be horse or dog. Wormer is medicine and when given incorrectly can be a disaster for the animal.
No, the ingredients and dose rates are different between cats and dogs, and some dewormers can only be used in one species. Your best option is to get a cat-specific dewormer to treat your cat's worms - for the majority of worms cats get, there are pretty cheap medication available to deal with them.
Yes.
You go and ask a vet.
Kill your two cats and claim a dog would help you to forget about their deaths
monthly
Dog wormer products are effective in keeping your pet healthy by eliminating hookworms, roundworms, heartworms and tapeworms in dogs. However, different products may have different effectiveness depending on quality of the de-wormer used.
Take your dog to the vet!
Dogs, Cats Strangely Revive!
Foxes, and coyotes are well known to kill and eat cats.
don't bother. Dog or cat. you choose STOP BRINING YORBEL!
Depending upon which dewormer you are talking about and the dose you are thinking of trying, the goat dewormer may kill your dog. To be safe, you should talk to your veterinarian and get a prescription for a dewormer that is intended for use on dogs.