New Man Vet Centers have switched the Flea Treatment medicine and it does NOT WORK! as a prescribed medicine it cannot be returned and per the staff there is no alternative treatment with their center, I have 3 dogs and I gave it to my tiniest 5 lb Yorkie/Chihuahua and my home has been treated both inside and outside, per the staff it is required as the fleas will attach themselves to the dogs, I said yes that is correct hence why I buy the treatments for them, so that if they do they will not attack and feed of my dogs. They kept saying there is nothing they can do but offer me a free evaluation. I informed them that is a flea problem and the medicine ( Simparica) they gave me and sold me 6 months worth does not work. Do not buy This product from them! spend your money elsewhere!