I have been wondering if these reported adverse reactions are due to genetics of the impacted animal.
In reading up on how these slow release collars and spot-on treatments work I came across statements about how on cats certain active ingredients (or formulations) are not as effective as on dogs because the adsorption through the skin of the active ingredients is faster in cats than dogs lowering the amount of the drug on the skin of the cat to kill flees and ticks.
I then browsed the literature for transdermal drug delivery in humans (i.e. nicotine patch) and came across studies on the impact of certain genetic mutations that alter how fast drugs are absorbed from the patch to the blood stream.
These literature findings suggest to me that it is possible there are canine mutations that alter how fast drugs on the skin (via spot-on or slow release collars) are absorbed through the skin and if this process is fast enough the serum levels could become high enough to become toxic.
That's a good theory. It is a well known fact that flea and tick collars that are made for dogs will kill cats.
Doug & Sandy
Kaylee (16-year-old Terrier of some sort)
Winnie 4 1/2 year old golden
Sasha and many others at the Rainbow Bridge
2008 Southwind
2009 Honda CRV
We have an English Springer Spaniel that started scratching and licking almost obsessively recently. We wondered if the Seresto collar may have caused this?
The use of the collar and the licking of her front legs and paws seemed to coincide.
We took the collar off about a week ago after reading some of the complaints and she is much better. The obsessive linking is much better. We will see if it continues to get better as the chemicals work out of her system.
My two cents.
Jesseannie
* This post was
edited 03/14/21 05:31pm by jesseannie *
I use Soresto collars and toxicity has never been an issue. However, you can choose another collar for your pet. Here is a helpful article on this topic ***Link Removed***https://catspurfection.com/top-7-best-flea-collar-cats.html