An alert reader sent me the following in regards to Hartz’s Vectra 3D:
“I don’t want my name or info published but I am very much in favor of what you are doing here and I thought you should know that Hartz has launched a new permethrin based product that is extremely toxic to cats. It is called Vectra 3D and it is sold through DVM’s. The umbrella company that they are marketing it under is called Summit Vet Pharm, but if you “google patent search” the main ingredients, you will see that it is a Hartz product. As a pet parent, I was very upset that they would try to do an underhanded approach to get their bad reputation skirted.
Here is a link to their website:
Here is a link to the patent: