Frequent Questions

What should I do if my pet has an adverse reaction to a flea and tick product?

If a pet shows any unusual reaction soon after application, immediately remove any remaining product from the pet by bathing your pet in mild soap and rinse with large amounts of water, unless the product specifically states not to or doing so would be stressful for the animal. Unusual reactions may include neurological symptoms such as distress, nervousness, tremors, and signs of skin irritation. In addition, you should immediately consult with your veterinarian.

Pet owners should also remember to report adverse effects to the product registrant, which is required by law to report it to EPA. Contact information can be found on the product label. Clearly identify the name of the product used, the EPA Registration Number, the type and breed of animal affected, symptoms observed in the pet, and any other details pertaining to the incident.

In addition, veterinarians have access to a reporting mechanism called the Veterinary Pesticide Adverse Effects Reporting portal at to report incidents. This portal is not for use by the public.

You may also contact the National Pesticide Information Center at 800-858-7378 to report an incident.

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