FRONTLINE® Plus      FRONTLINE Top Spot®
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How FRONTLINE works

Works fast… and lasts.

FRONTLINE Plus killed 100% of fleas within 12 hours of application* and continues to provide fast-acting, long-lasting flea and tick control. FRONTLINE Plus also breaks the flea life cycle to prevent future infestations.

When you apply FRONTLINE, fipronil, the active ingredient, is stored in the oil glands under your pet's skin. It is then distributed continuously to the skin and hair of your pet through the hair follicles.

This way, FRONTLINE Plus:

offers continuous protection for an entire month;

is waterproof even as your cat grooms and your dog swims;

breaks the flea and tick life cycle.

FRONTLINE is easy to use and proven effective.

*Data on file at Merial TS-USA-28701.