If you’re a small animal veterinarian, you commonly prescribe flea and tick products for your patients. FDA approves some flea and tick products as animal drugs while the Environmental Protection Agency (EPA) registers others as pesticides. You can identify the regulating agency by looking at the product’s label.
An FDA-approved flea and tick product often has the statement, “Approved by FDA,” followed by the six-digit New Animal Drug Application (NADA) or Abbreviated New Animal Drug Application (ANADA) number on the label. If you have a question about the product’s approval status, you can follow the tips on how to tell if a drug is legally marketed for animals.
An EPA-registered flea and tick product has an EPA Registration Number (sometimes written as “EPA Reg. No.”) on the label. Another way to determine if a product is registered by EPA is through Purdue University's National Pesticide Information Retrieval System (NPIRS). The public portion of this system provides free, user-friendly information about EPA-registered pesticides. You can search NPIRS by EPA registration number, product name, company name, or active ingredient.
Unfortunately, counterfeit pet pesticides are a problem in the U.S. Counterfeit flea and tick products are illegally packaged to look like legitimate EPA-registered pet pesticides.