An investigative report found that from 2012 when the product was introduced in the US, until June 2020, pet fatalities totaling 1,700 were reported, another 75,000 adverse effects on pets and 900 cases on humans are linked to the product. Unreported cases may also be high because some owners may not be aware that the collar may be connected to the ailments affecting the otherwise healthy animals.
Possible adverse effects may include hair loss, skin irritation, loss of appetite, vomiting, excessive drooling, diarrhea, seizures, convulsions, and death.
Illinois representative, Raja Krishnaoorthi, has asked the manufacturer for a voluntary recall of the product. However, as of March 2021, the collars can still be bought in major pet stores.
The representative, who chairs the House subcommittee on Economic and Consumer Policy, told reporters that “it’s appropriate, out of an abundance of caution, that we step back, we look at the situation, investigate and proceed from there.” He requested the company for more information about the toxicity of the product.
Elanco, the maker of Seresto, opposed any recall and claims of the 25 million collars sold since 2012, only 0.3% had been linked to incidents which meant that it met standards set by the EPA. Lawyers of the company stated that reports linking the product to harmful reactions are baseless.
They also pointed out that some veterinarians did not report any adverse effects and added that more investigation by the EPA and other regulatory bodies is needed.