House Committee Says Seresto Should be Recalled


Seresto flea and tick collars has been allegedly linked to 2,500 dog deaths. What’s more, there are reported adverse events linked to humans.

The U.S. House Committee on Oversight and Reform said that a voluntary recall makes sense given not only resulting in needless reported deaths of beloved family members but 100,000 reported incidents of what the Environmental Protection Agency (EPA) calls “unexpected effects from the use of a pesticide.”

23-page report advises a sweeping product recall and criticizes the Environmental Protection Agency (EPA) for not protecting consumers long ago.

Among other allegations, it says the EPA allowed the flea and tick collar to stay on the market despite identifying the danger to pets and owners dating back to 2015. And while Canada’s Pest Management Regulatory Agency banned the Seresto collars, the EPA continued to allow them in the U.S. despite similar findings.

Per the report, observed symptoms in dogs include skin lesions and irritated skin, which sometimes covered large areas of a pet’s body and did not necessarily resolve after owners removed the collar. According to the panel, other symptoms include lethargy, abnormal behavior, excessive grooming, vocalization, vomiting, diarrhea, and anorexia.

“These troubling symptoms appeared shortly after use of the Seresto collar began, mostly within the first month,” according to the report. “Many pet owners reacted by removing their pets’ collars early,” it stated.

The report added that even some pet owners themselves also allegedly experienced side effects. These included skin and immune disorders, plus respiratory, neurological, and digestive problems as well as sore throats, dizziness, and nausea.

American consumers have purchased about 34 million Seresto flea and tick collars since their initial release in 2013. The collar has been popular, in part, because it’s simply convenient to slap on a collar which works continuously for eight months.

Serestro’s Back Story

Serestro was launched as a product from Bayer Animal Health but that company was purchased by Elanco Animal Health in 2020 which now manufactures, markets and sells Serestro.

Comparing Seresto’s active ingredients to other flea treatments’ lists, the brand uses a pesticide called flumethrin (a tick killer and repellent). No other major flea and tick treatment uses it.

It may be little known but true that the EPA has previously even warning using Serestro around children due to those active ingredients.  No other parasite protection for pets offers such a warning from the EPA – the problem is that many veterinary professionals and consumers don’t know this warning exists.

What Elanco Says

Meanwhile, Elanco seeks to downplay the claims. During a hearing, Elanco Animal Health CEO Jeffrey Simmons contended that the collar is safe. He also correctly points out two coinciding factors. The number of adverse effects is reasonably small when compared to numbers purchasing, and effect isn’t necessarily related to causation.  And in the U.S. anyone can report an side-effect of a pet product without medical confirmation.  Simmons also said the collar is safe and had been approved previously by the EPA, undergoing more than 80 safety, toxicity and efficacy studies.

Protect Your Pets

Still, the number of adverse events to dogs and their reported deaths is exceedingly concerning (if not downright tragic), not to mention illness to humans in many cases verified by human medical professionals.

One concern about all this press is that pet parents may be afraid to use a flea and tick preventative. Today’s veterinary products are otherwise arguably quite safe, and they work. There’s an epidemic of ticks and therefore tick disease which can cause severe illness in dogs. Fleas not only transmit disease, but unprotected dogs will bring fleas home which will not hesitate to bite indoor cats or humans in the home.

  • Many veterinarians recommend Isoxoline spot-on products, The FDA-approved drugs in this class are
    • Bravecto (fluralaner) tablets for dogs
    • Bravecto (fluralaner) topical solution for cats and dogs
    • Bravecto Plus (fluralaner and moxidectin) topical solution for cats
    • Bravecto 1-month (fluralaner) tablets for dogs
    • Credelio (lotilaner) tablets for dogs and cats
    • Nexgard (afoxolaner) tablets for dogs
    • Simparica (sarolaner) tablets for dogs
    • Simparica Trio (sarolaner, moxidectin and pyrantel) tablets for dogs
    • Revolution Plus (selamectin and sarolaner) topical solution for cats

These products are approved for the treatment and prevention of flea infestations, and the treatment and control of tick infestations. Some are also approved for treatment and control of ear mite infestations and some gastrointestinal parasite infections, and a few are also approved for prevention of heartworm disease.

Talk with your veterinarian about the right protection for your pet.