Reading labels should be the norm. As responsible pet owners, whether to cats or dogs, it is important to read what is on the label of whatever you are giving to your pet. Cats are more sensitive to certain chemicals than dogs.
Tick products for dogs have a topical insecticide called permethrin, a chemical that cats are sensitive to. Cat owners must know how toxic permethrin is to their feline friends when in contact with the insecticide. If you have both cats and dogs at home, make sure that your cat does not come in contact with products that contain the chemical meant for your dogs.
To be safe, separate your cat from your dog when you apply the medication. It is best to apply the ointment at night to give it time to dry. As time goes by and the ointment dries, it gets less risky for your dog to come in contact with your cat.
Consult your vets Wheat Ridge, CO, and inquire which flea or tick product you can use on your cat.