Frontline Shield Flea & Tick Treatment for Extra Large Dogs, 81 - 120 lbs

By Frontline Shield
Rated 3.5 out of 5 stars
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Frontline Shield Flea & Tick Treatment for Extra Large Dogs, 81 - 120 lbs, 6 doses (6-Month Protection) slide 1 of 12
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Frontline Shield Flea & Tick Treatment for Extra Large Dogs, 81 - 120 lbs, 6 doses (6-Month Protection) slide 1 of 12
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About This Item

  • Helps kill ticks, stable flies, chewing lice and adult fleas, flea eggs and larvae.
  • Topical solution helps to repel ticks that may transmit Lyme disease and mosquitoes that may transmit heartworm disease.
  • Helps prevent reinfestation by stopping all flea life stages from developing.
  • Each dose is formulated to protect your dog for a full 30 days.
  • The treatment is easy to apply and is waterproof 24 hours after application.
Play Video: Learn More About Frontline Shield From Our Team of Experts
Learn More About Frontline Shield From Our Team of Experts


About FRONTLINE Shield for Dogs

The #1 Name in Flea and Tick Protection*

FRONTLINE Shield is powerful 3-in-1 protection for dogs. It not only kills fleas and ticks—it also repels mosquitoes, ticks and stable flies. Just one dose provides protection for a full 30 days.

Breaks the Flea Life Cycle

FRONTLINE Shield kills existing adult fleas as well as flea eggs and larvae. Once applied, it rapidly spreads over the surface of your dog’s body. One application provides continuous flea and tick protection for a full month and helps prevent future infestations.

From the #1 Name

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

Repellency Power

Repels ticks, mosquitos and stable flies, so they won’t bug your pet.

Kills Fleas and Ticks

FRONTLINE Shield kills fleas, ticks and chewing lice.

Powerful Defense

Repels ticks that can carry Lyme disease and mosquitoes that may transmit heartworm disease.

Trusted Protection

FRONTLINE brand products are the flea and tick protection products pet parents trust most.*

Waterproof

FRONTLINE Shield becomes waterproof 24 hours after application, for lasting protection.

Effective for Puppies

Can be used on puppies as young as 9 weeks old who weigh at least 5 lbs.

For Dogs Big and Small

Doses come in Extra-Small 5-10 lbs., Small 11-20 lbs., Medium 21-40 lbs., Large 41-80 lbs., and Extra-Large 81-120 lbs.

Fleas and Ticks Abound Year-Round

No matter the time of year, fleas and ticks can pose a threat to your dog. Flea infestations usually begin 6-8 weeks before you ever see a flea, and once you have a flea problem, it can take 90 days or more to fully eradicate. That’s why you need monthly protection year-round with FRONTLINE Shield.

Year-Round Protection With Autoship

Sign up for Autoship today and save on FRONTLINE Shield. You’ll get a discount on every order, and you can rest easy knowing you’ll never run out of your dog’s flea and tick protection.

Dedicated to Prevention

Boehringer Ingelheim, the maker of FRONTLINE Shield, is committed to enhancing pet well-being and supporting the animal health community through science and innovation. No pet should have to suffer a preventable disease, which is why Boehringer Ingelheim develops product lines like FRONTLINE, the flea and tick protection brand most trusted by pet parents.* 

About FRONTLINE Shield

FRONTLINE Shield protects your dog from fleas and ticks. Three powerful ingredients combine to kill fleas, ticks and chewing lice fast—and continue protecting your dog for a full 30 days. A single topical application of FRONTLINE Shield also repels stable flies, ticks that may transmit Lyme disease, and mosquitoes that may transmit heartworm disease. It’s the monthly protection your dog needs, from the brand you trust.

Shop FRONTLINE Shield

*Data on file at Boehringer Ingelheim.

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Top IngredientsFipronil, Permethrin, PyriproxyfenFipronil, Permethrin, Pyriproxyfen.Fipronil, Permethrin, PyriproxyfenFipronil, Permethrin, PyriproxyfenFipronil, Permethrin, Pyriproxyfen.
LifestageAdultAdultAdultAdultAdult
Breed SizeGiant BreedsLarge BreedsMedium BreedsSmall BreedsExtra Small Breeds, Small Breeds

Questions & Answers

5 Customer Questions


what ticks does this product kill
Answer by ChewyMar 08, 2021
This treatment is formulated to kill and repel all ticks.

my lab has fleas, how quickly will he get relief
Answer by ChewyJun 29, 2021
Starting 2 days after application, this treatment can start killing fleas in 5 minutes and ticks in 1 hour.

does this repel flies?
Answer by ChewyNov 12, 2021
This treatment Helps kill ticks, stable flies, chewing lice and adult fleas, flea eggs and larvae. The topical solution helps to repel ticks that may transmit Lyme disease and mosquitoes that may transmit heartworm disease. Helps prevent reinfestation by stopping all flea life stages from developing.

Does this topical treatment need a prescription?
Answer by ChewyAug 22, 2021
This treatment does not require a prescription.


ReviewsWrite a Review

3.5
Rated 3.5 out of 5 stars
10 Reviews
70%
Would recommend to a friend
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20
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10
10%
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20
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10 Customer Reviews



Rated 1 out of 5 stars
By Caren on Sep 23, 2022

Did not work

I used this product on all five of my dogs and it did not work at all. I was deeply disappointed in this product.


Rated 1 out of 5 stars
By Infested on Jun 1, 2022

Now I have fleas too...

Followed directions and the dog still has fleas, more than before using the product.


Rated 2 out of 5 stars
By flea on Nov 22, 2021

not worth it

I have a 100 lb. lab and he has fleas. I have a fenced yard and he doesn't go anywhere so I don't know where they came from but I bought this product and have used it for 2 months now and he still has fleas. Yes I am vacuuming, steam cleaning and washing everything but to no avail. Very disappointed with this product not to mention the cost.


Rated 3 out of 5 stars
By Lindsey on Nov 9, 2021

not sure if it’s actually working

I’ve been using this specific product on my German shepherd (he’s about 100 pounds or less). I’m noticing he’s still scratching himself and is now missing fur around his inner thighs, soo I’m questioning if this product actually works. it’s awfully expensive for it not too work or for me too even have too question whether it’s working or not.


Rated 5 out of 5 stars
By Sparky on Oct 8, 2021

Appears to work extremely fast.

This is the first time we have used this Shield variety. Our dog had some digging because of flea infestation going on. Applied this Frontline and the following day the digging and scratching was majorly reduced. It’s been a couple of weeks now and the fleas are a thing of the past!


Rated 5 out of 5 stars
By motherofdanes on Jan 11, 2022
Top 50 Contributor

Works good

My Danes have never had fleas or ticks knock on wood. We use this and have no problems.


Rated 3 out of 5 stars
By barnyardmom on Nov 3, 2021

Did not work well on first application.

This took a second application a week later to work. Was disappointed for the first time with a frontline product.


Rated 5 out of 5 stars
By Wayne on Jul 22, 2021

This works!

My GSD is happy. No more ticks left on the car seat after rides. Also have noticed no flies along with the mosquitos and we are in our monsoon season here in Arizona. Well worth it.


Rated 5 out of 5 stars
By Brittany on May 17, 2021

Great product!

Love it! It's the only stuff I've found that actually REPELS bugs instead of just killing them. I watched a mosquito buzz around my dog and it kept coming within an inch of her and then darting away over and over again. This will be my new go-go.


Rated 5 out of 5 stars
By Meyetee1 on Aug 13, 2021

Frontline shield

This was easy to use. It works great,especially in an area with lots of ticks.