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About FRONTLINE Plus for Cats

#1 Name in Flea and Tick Protection*
FRONTLINE Plus has been trusted by pet parents for over 20 years.** This fast-acting flea and tick protection contains fipronil, which kills adult fleas, as well as (S)-methoprene, which kills flea eggs and larvae. Together, these active ingredients break the flea life cycle, prevent further infestations, and provide continuous protection for a full month.

Protect Your Cat Here, There and Everywhere
Fleas and ticks can be found outdoors and indoors, too! That’s why it’s important to keep your cat companion protected month after month.

The #1 Name
FRONTLINE is the #1 name in flea and tick protection.*

Long-Lasting Protection
One dose of FRONTLINE Plus for Cats lasts a full 30 days.

Fast-Acting Formula
Once applied to your cat, this powerful formula kills fleas, ticks and chewing lice on contact.

Waterproof
FRONTLINE Plus is waterproof 24 hours after application.

Trusted Protection
FRONTLINE Plus has been trusted by pet parents for over 20 years.**

For Cats Old and Young
FRONTLINE Plus for Cats can be used on cats and kittens as young as 8 weeks and weighing 1.5 lbs. lbs. or more.

Options to Fit Your Needs
Available in 3-, 6-, and 8-dose packs.

Formulation Available for Dogs
You can protect your dogs, too, with FRONTLINE Plus for Dogs!
Pests Can Be a Year-Round Threat
Flea infestations usually begin 6-8 weeks before you ever notice a flea on your cat, and once your home is infested, it can take up to 90 days to eliminate all stages of the flea life cycle. Protecting your cat with FRONTLINE Plus monthly, year-round can help prevent reinfestations.

Protect Year-Round with Autoship
Sign up for Autoship today and save on FRONTLINE Plus. You’ll get a discount on every order of FRONTLINE Plus, and you can rest easy knowing that you’ll never run out of proven flea and tick protection.

The Mission
Boehringer Ingelheim, the maker of FRONTLINE Plus, is committed to enhancing the well-being of pets and supporting the animal health community through science and innovation. No animal should have to suffer a preventable disease, which is why Boehringer Ingelheim develops products like FRONTLINE Plus.
About FRONTLINE Plus
FRONTLINE Plus is the #1 name in flea and tick protection.* It’s formulated with two active ingredients that kill fleas and ticks and prevent new flea infestations from developing. FRONTLINE Plus is waterproof 24 hours after application, lasts for a full 30 days and has formulations available for dogs and cats. With FRONTLINE Plus, you can take your pet everywhere.

* Data on file at Boehringer Ingelheim
** Data on file at Boehringer Ingelheim
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Top Ingredients | Active Ingredients : Fipronil 9.8% , (S)-methoprene 11.8%. | Active Ingredients: Fipronil, (S)-methoprene. | Dinotefuran, Fipronil and Pyriproxyfen | Active Ingredients : Fipronil , (S)-methoprene , Pyriproxyfen. | Fipronil: 9.58%, Pyriproxyfen: 11.65%, Glycol Ether:75 - 85%. |
Small Pet Type | N/A | N/A | N/A | N/A | N/A |