Seresto Flea Collars Linked to Almost 1700 Pet Deaths - Page 2

Pedigree Database


by GSCat on 04 March 2021 - 11:03

EPA document from 2019

Midwest Center for Investigative Reporting

Brief descriptions of court and administrative actions

Most recent court ruling (US Court of Appeals, 9th District)


From the 360Vet article

Karen McCormack, a retired EPA employee, told USA Today that more incidents have been reported with Seresto than with any other pesticide pet product. “I think this is a significant problem that needs to be addressed sooner rather than later,” she says.


FWIW, I have no idea if more people are buying flea collars, especially Seresto, than in the past, and if so, whether or not this has increased complaints about flea collars in general, and/or about Seresto specifically. The pandemic has definitely changed what people buy, through supply chain/availability issues/patterns and/or changes in household income, both of which can/do affect what people buy.   I also have no idea if complaints have been higher because more people at home/unemployed with more time to submit complaints.


by Hundmutter on 04 March 2021 - 15:03

Sounds as though there are some concerns about the possible adverse effects on children coming into too much contact with these collars, GSCat. The problems may be rare, but if you have a child - or a dog - that suffers ill-effects, the statistic that you are only 0.0003 % does not count for much.

I don't know how organo-phosphates stand in re North American laws, but 'big pharma' spent a lot of time telling farmers in the UK just how harmless they were ... until the level of damage forced a decision to ban the use of them.

by GSCat on 04 March 2021 - 16:03

Many countries ban organophosphate pesticides. The U.S. does not, although it does set limits on residue on foodstuffs.

Three umbrella U.S. laws that apply are Federal Insecticide, Fungicide, and Rodenticide Act, Food Quality Protection Act, and Federal Food, Drug, and Cosmetic Act.

Interesting aside, chemical warfare nerve agents are acetylcholinesterase-inhibiting organophosphates. Banned by international treaty/law.  Not implying flea collars containing organophosphates are on par with chemical warfare/agents.


by jillmissal on 04 March 2021 - 19:03

Karen McCormack, a retired EPA employee, told USA Today that more incidents have been reported with Seresto than with any other pesticide pet product. 

If one looks at the ACTUAL NUMBERS, this statement is statistically false. 

What garbage reporting. 


by Kimmelot on 07 April 2021 - 12:04

I suspect the issue is faked products sold for dollars cheaper on Amazon and on Ebay etc. Not from Bayer . There is several links and videos about this...

A friend of mine bought fake K9 advantix 2 also.. I went to apply it to her dog while visiting and it smelled like Lavender or something.. the little secure plastic thing was broken. The numbers on the product did not match the box.. things where off... I sent it to Bayer and they sent me a free product. They said this is a very common scam. Make sure you buy your flea and tick products from good sources.

by GSCat on 08 April 2021 - 01:04

I try to buy flea and tick, heart worm, etc. products from the vet or a local brick-and-mortar pet supply store because of the potential for counterfeit products and to help people in my community keep their jobs. The vet usually beats online prices, anyway.


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