Proban's label, for example, warns that the product is not for use in greyhounds, who are sensitive to the insecticide it contains, an organic phosphate. Also, some products should not be used together or when a pet is taking certain medicines. If you don't understand the directions or have questions, talk to your veterinarian. EPA product manager Rick Keigwin agrees. As pesticides are intended to kill pests, they generally are inherently toxic, he says.
Some products pose some risks, but they also offer significant benefits.
We balance the risks with the benefits. La Rocca adds that with cats, use only products labeled for cats. Dogs groom, but cats groom more, so they would ingest more of a topical product. Virtually hundreds of pesticides and repellents are approved or licensed to control fleas and ticks on cats and dogs or in their environment. To select proper products for your pet's individual needs, talk to your veterinarian, says Larkins.