More trouble than you can see.

If your dog or cat has fleas, it's very important to realize that the adult fleas you see make up a very small percentage of the entire flea problem. Under ideal conditions, a pair of fleas can produce millions of descendants in one year, and each new generation can grow from egg to adult in only 21 days.

Since fleas have such an incredibly rapid rate of reproduction, it's critical to prevent the development of all flea stages - from flea eggs, larvae and pupae to adult.

The need for new chemistry.

Nature is constantly shifting, and vectors tend to adapt in order to survive. Over time, fleas can develop resistance to existing chemistry, which makes some active ingredients less effective in protecting pets from infestation and infection.

Vectra® products are based on a brand new compound called dinotefuran. After years of development, numerous studies and veterinary clinics across the United States have shown that Vectra products kill fleas quickly, without a noticeable decline in effectiveness between applications.

Complete flea protection.

Vectra products, used once a month, every month of the year, effectively prevent all stages of the flea life cycle by killing adult fleas, flea larvae and early pupae. Breaking the life cycle may help reduce the risk of flea allergy dermatitis and other serious diseases. It is imperative that all pets in the household be treated to ensure complete flea protection.