Government undertook a nine month investigation into the safety of anti-flea and tick products, after it announced that it will neither be banned nor pulled out from the market. While the pet owners consider that such products have serious effects on their cats and dogs, the labels will be changing in a few months.

The products which are under inspection are termed as spot on as they are liquid products used only once a month usually to a pet animal's skin, between the shoulder blades.

A number of cats and dogs were reported of getting sick and dying in the year 2008, which made the Environmental Protection Agency scrutinize that whether such anti-flea and tick products were the possible cause.

EPA's summarized that though the products are safe to use, but the labeling on these products is not sufficient. Other reasons behind calling these products unsafe are the inappropriate doses given to the animals, for instance dosages intended for large dogs being used on small dogs. In some cases, some of the dog flea and tick products were used on cats.

Steve Owens, an EPA Assistant Administrator in the office of prevention, pesticides and toxic substances said, "Yes, the products are safe, but the labeling is inadequate".