Shortly after applying Vectra 3D to my 37 lb. mixed breed dog, he starting acting very strange, kept whipping his head around to look at his back and shaking like he would if he were wet.
Overnight his discomfort became worse, walking with his head low, and not wanting to move, even had to persuade him to eat, and that is really out of the ordinary.
After 3 washings with Dawn dish soap, and lots of conditioner he felt quite a bit better, but it took a couple of days for him to seem normal. This product is extremely irritating to some dogs, because of my experience, I would not recommend it.
Review about: Ceva Animal Health Vectra 3d Flea Control.
Reason of review: Bad quality.