My indoor cat managed to badly cut a vein on her hind leg. The veterinary office does not open until 10:00 am and the accident happened at 8:30 am. I applied cayenne pepper and the bleeding slowed then stopped.When I went to see the vet, at first she said the injury could not be too serious because it wasnt bleeding. When the wound was washed then the bleeding started again. My cat required four stitches. What works for humans also works for your pets.