Frontline Flea & Tick Spray for Dogs & Cats, slide 1 of 1

Frontline Flea & Tick Spray for Dogs & Cats

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Help protect your furry family member from bothersome bugs with FRONTLINE Spray for Dogs & Cats Flea & Tick Treatment. This spray helps curb existing infestations and inhibit future infestations by helping to kill fleas, ticks, and chewing lice. It’s also designed to be waterproof, fast-acting, and long-lasting. This treatment is paw-fect not only for adult dogs and cats, but also for puppies and kittens who are eight weeks old or older.

Key Benefits
  • Promotes a fast-acting protection from fleas and ticks.
  • Helps curb existing flea infestations and inhibit future infestations.
  • Helps kill brown dog ticks, American dog ticks, lone star ticks, and deer ticks in all life stages.
  • Designed for a waterproof protection.
  • Helps kill fleas.

Wear household latex gloves when using Frontline Spray. Consult with a veterinarian before using on medicated animals, animals being treated with other pesticides, and debilitated, aged, pregnant, or nursing animals.

Important Information

Fleas rise to the top of your pet's coat as they die, so consider it a triumph if you start seeing more fleas at first, after treating your pet. If you’re still seeing fleas after application, it may be because your pet has picked up new fleas from the environment, which may include other pets, surfaces and outdoor areas. It may take up to 30 days to break the entire flea life cycle. Additionally, you should also treat sources of new fleas (i.e., carpet, yard, etc.) to ensure complete flea control.

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  • Item Number
  • Usage
  • Brand
    Merial, Boehringer Ingelheim
  • Lifestage

Fipronil 0.29%. Other ingredients: 99.71%.


Apply the spray mist until your pet’s hair is damp to thoroughly wet. Ensure complete coverage to skin level. Massage the coat all over to make sure the spray gets right down to the skin.

  • Apply Frontline Spray once every 30 days to control existing flea and tick infestations.
  • Wear household latex gloves. Ruffe pet's coat with one hand while applying spray to back, sides, stomach, legs, shoulders, and neck.
  • For head and eye area, spray on a gloved hand and rub gently into pet's hair. do not get product in pet's eyes or mouth.
  • Apply spray mist until hair coat is damp to thoroughly wet. In most cases 1 to 2 pumps per pound of body weight will be necessary.
  • As with all flea products, wash your hands and any exposed skin thoroughly with soap and water after applying to your pet.

How does FRONTLINE® SPRAY work?

FRONTLINE® SPRAY contains the active ingredient fipronil. Once applied, FRONTLINE® SPRAY kills fleas and ticks through direct contact.

How often do I need to use FRONTLINE® SPRAY?

FRONTLINE® SPRAY kills fleas, ticks, and chewing lice for at least 30 days.

Do I need to use other flea & tick treatments while using FRONTLINE® SPRAY?

No, FRONTLINE® SPRAY is an effective treatment against fleas and ticks that lasts for 30 days. If applied correctly and on a regular monthly basis, you do not need to use any other treatments while using FRONTLINE® SPRAY.

Do I need to treat my cat or dog for fleas and ticks even in colder months?

Yes, although the likelihood of your cat or dog being affected by fleas decreases in the winter months, climates can vary and result in mild winters, favoring the survival of fleas outdoors for much longer. Fleas can also continue to develop indoors in homes thanks to warmer temperatures. Ticks can also be a problem year-round with some species of ticks attempting to acquire a host when temperatures are just above freezing. Therefore, it’s important to keep protecting your cat or dog throughout the year.

My cat or dog doesn’t go outside much, do I still need to treat them for fleas and ticks?

Yes, even ‘indoor-only’ cats or dogs can become exposed to fleas. For instance, ‘indoor-only’ dogs still spend time outdoors whether it be to go on a walk or just going to the bathroom outside. Your animals can pick up fleas and ticks in your own backyard! Your pet could also be exposed if an untreated cat or dog visits your home or if you or a friend brings in fleas on shoes or clothing.

Why might I see fleas and ticks on my cat or dog after treatment?

FRONTLINE® SPRAY kills fleas by affecting their nervous system, making them hyperactive before dying. These dying fleas often rise to the top of the cat’s or dog's coat. So, if you feel like you may be seeing fleas more after treatment, it could actually be a sign that the product is working! FRONTLINE SPRAY kills ticks, but after treatment, ticks may still attach to your pet. If you see an attached tick on your cat or dog, it is recommended for the tick to be removed and discarded (please see CDC recommendations on Tick Removal).

Is FRONTLINE® SPRAY safe to use on my cat or dog?

FRONTLINE® SPRAY is approved for use for cats and dogs, and adverse reactions to the treatment are very rare. If you believe your cat or dog has experienced any side effects after use of FRONTLINE® SPRAY, please contact your veterinarian or contact the Boehringer Ingelheim Veterinary Technical Solutions Team at: 1-800-660-1842. Please follow the usage instructions and weigh your cat or dog accurately before using FRONTLINE® SPRAY. It is recommended that you allow animals to be treated in a well-ventilated room and do not confine your cat or dog to a small space (i.e., pet carrier) until the treatment is completely dry. HAZARDS TO DOMESTIC ANIMALS For external use only. May cause severe eye irritation. Take care not to SPRAY in the animal’s eyes or facial area. Do not use on kittens and puppies under 8 weeks. Individual sensitivities, while rare, may occur after using any pesticide product for pets. If signs persist, or become more severe, consult a veterinarian immediately. Certain medications can interact with pesticides. Consult a veterinarian before using this product on medicated, debilitated, aged, pregnant or nursing animals.

PRECAUTIONARY STATEMENTS HAZARDS TO HUMANS. CAUTION: Harmful if swallowed or absorbed through the skin. May cause severe eye irritation. Avoid breathing SPRAY. Avoid contact with skin, eyes or clothing. Wash hands thoroughly with soap and water after handling and before eating, drinking, chewing gum, or using tobacco. Persons applying this product must wear household latex gloves. READ ENTIRE LABEL BEFORE EACH USE.

Can I handle or pet my cat or dog after applying FRONTLINE® SPRAY?

Allow product to completely dry before handling your pet.

What are the signs of fleas on my cat or dog?

Apart from visually seeing fleas on your cat or dog or in your home, other signs that your cat or dog might have fleas include increased itching, scratching, licking, nibbling and over-grooming. You may also see small dark red or black specks on your cat or dog’s skin, bedding or on furniture.

How do cats or dogs pick up fleas?

Cats and dogs can pick up fleas from anywhere untreated pets and wildlife have been—indoors or outdoors. Fleas on these animals lay eggs, which fall off into the environment and develop into adult fleas ready to jump onto your cat or dog.

Why does it take so long to resolve a flea infestation in the home?

Flea eggs, larvae, and pupae in the environment continue to develop and emerge as new fleas (even after your pet has been treated with a flea control product). It can take weeks to months for this already established infestation to be controlled.

Where can I find the expiration date for FRONTLINE® SPRAY, and how long will it last once I’ve bought it?

FRONTLINE® SPRAY has no expiration date.

What is the best number to call regarding any specific product questions?

For any specific product questions, please call Boehringer Ingelheim Animal Health’s customer service line number at 1-888-637-4251.

Keeping Your Pets Protected Against Ticks and Fleas

FRONTLINE Plus will help you protect your pet from irritating fleas and ticks. It is a simple-to-use topical treatment that is easy to apply and provides lasting protection for a full 30 days. This flea and tick protection contains two powerful ingredients to stop fleas and ticks in their tracks and help prevent future flea infestations.

Keeping Your Pets Protected Against Ticks and Fleas
The Flea and Tick Protection Vets Have Trusted for Nearly 20 Years

The Flea and Tick Protection Vets Have Trusted for Nearly 20 Years

FRONTLINE Plus is a veterinarian-recommended flea and tick treatment that is both fast-acting and long-lasting. It works to break the flea life cycle and also kills adult ticks that may transmit diseases. It offers waterproof protection as well, so you can rest assured knowing that FRONTLINE Plus has your pets covered with FRONTLINE Plus for Dogs and FRONTLINE Plus for Cats.

Tough Ingredients To Arm Pets as Young as 8 Weeks

FRONTLINE Plus for Dogs is approved for puppies at least 8 weeks old and weighing as little as 5 lbs all the way to senior dogs. And with FRONTLINE Plus for Cats, kittens weighing at least 1.5 pounds can start protection as young as 8 weeks, too. To stop fleas and ticks in their tracks and prevent future flea infestations, FRONTLINE Plus uses two tough ingredients, fipronil and (S)-methoprene. Fipronil kills adult fleas and ticks that come into contact with your pet, while (S)-methoprene works to kill flea eggs and larvae before they can develop.

Tough Ingredients To Arm Pets as Young as 8 Weeks
Tough on Fleas and Ticks, Easy to Apply

Tough on Fleas and Ticks, Easy to Apply

Applying FRONTLINE Plus for Dogs and FRONTLINE Plus for Cats is simple and quick.Simply part your pet's hair between the shoulders, place the applicator tip just above the skin, and squeeze directly onto the skin. Avoid contact with the treated area until dry. Read the entire product label before each use. Once applied, FRONTLINE Plus will protect your pet from fleas and ticks for a full 30 days. Monthly application is simple so peace of mind comes easy month after month. As long as FRONTLINE Plus is fighting, you can forget about fleas and ticks.


FRONTLINE Plus is a trusted flea and tick control product that has been recommended by veterinarians for nearly 20 years. This topical flea and tick treatment uses two tough ingredients, fipronil and (S)-methoprene, which have been tested and proven to protect your pet from fleas and ticks and prevent new flea infestations for a full 30 days.


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