Danger of Using Frontline for Fleas

Many pet owners use a product called Frontline to treat and prevent flea and tick infestation of dogs and cats.

  1. Frontline

    • Frontline is a leader in flea and tick control for dogs and cats. Frontline is administered topically and is available without a prescription. It can be purchased at pet stores such as PetSmart.

    Ingredients

    • One of the active ingredients in Frontline is fipronil--a pesticide. The makers of Frontline do not disclose many of the "inactive" ingredients of Frontline on the packaging.

    Function

    • The pesticide in Frontline works by paralyzing the flea or tick's nervous system, leading to the death of the parasite.

    Side Effects

    • Dogs and cats treated with Frontline may experience skin irritation at the site of application.

    Warning

    • One of the active ingredients in Frontline is poisonous. It should never be left where pets can ingest it. Never use the product on a kitten or puppy under eight weeks of age. Pet owners considering Frontline should be aware that the long-term effects of constant use have not been studied.