Frontline Shield Flea & Tick Treatment for Small Dogs, 11 - 20 lbs

By Frontline Shield
Rated 2.5714 out of 5 stars

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$82.99Chewy Price
$84.99Chewy Price
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$2.00 (2%)
$78.84Autoship Price
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Why Autoship?

  • Save 5% on all future Autoship orders
  • Set your schedule based on your pet's needs
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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.

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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.

Protect Your Dog So You Can Go Anywhere Together

Fleas and ticks can be found everywhere outdoors—the park, the lake, even your own backyard. That’s why monthly protection is so important.

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.*


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.


*Data on file at Boehringer Ingelheim.

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$13.84/eaChewy Price
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$13.84/eaChewy Price
$82.99Chewy Price
$82.99Chewy Price
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$78.84Chewy Price
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$78.84Chewy Price
Top IngredientsFipronil, Permethrin, PyriproxyfenFipronil, Permethrin, Pyriproxyfen.Fipronil, Permethrin, PyriproxyfenFipronil, Permethrin, Pyriproxyfen.Fipronil, Permethrin, Pyriproxyfen
Breed SizeSmall BreedsExtra Small Breeds, Small BreedsMedium BreedsLarge BreedsGiant Breeds

Questions & Answers

5 Customer Questions

How long does this take to kill lice?
Answer by ChewySep 18, 2022
A study showed that within 12 hours, FRONTLINE® Plus for Dogs killed 100% of fleas.

Is it safe for a large breed 11 lb puppy
Answer by ChewyApr 06, 2022
This treatment can be used on dogs 9 weeks or older weighing 11 to 20 pounds.

I have a 20lb plus cat-should I get the Frontline for small dog rather than the cat version?
Answer by ChewyOct 05, 2021
This treatment is approved for use on dogs only, it is not suitable for cats.

Does my dog require a blood draw for any reason, prior to taking Frontline Shield? Thank you.
Answer by ChewyApr 09, 2021
This product does not require veterinary examination or approval, but it is recommended that you speak with your vet before starting any treatments.

ReviewsWrite a Review

Rated 2.5714 out of 5 stars
21 Ratings
Would recommend to a friend

21 Customer Reviews

Always consult a veterinarian about your pet’s health needs. Customer reviews should not be used as medical advice.
Rated 1 out of 5 stars
By Carol on Jun 20, 2023

Frontline Failure

Didn't work on 12 lb. Pomeranian. Called Frontline with the lot #, etc. They say it is a good batch. Didnt work. Not infested, only a few fleas. They DO NOT issue a refund no matter what.

Rated 5 out of 5 stars
By Chrissy on Jun 30, 2023

Works Great

My dog hasn't had fleas in years thanks to this product. My puppy is on the larger dose (GSD) and has never had a flea.

Rated 5 out of 5 stars
By Wandie on May 27, 2023

Frontline Works

Have used this product for years. Was happy the price was reasonable and had the next day. Will order again.

Rated 1 out of 5 stars
By Momma on Apr 17, 2023

2 weeks later

I gave my 7 year old baby girl a bath waited 2 hours to put the treatment on. And I am still waiting for it to work. Not happy with it.

Rated 1 out of 5 stars
By Kiya on Feb 18, 2023

Frontline Sheild

This product is too strong for small dogs. Our dog is 11# and had a terrible reaction to it. We thought she was having seizures for 12 hour straight and continued for 3 full days. Just be aware.

Rated 5 out of 5 stars
By JaysMom on Sep 6, 2022

Simple, worry-free protection

Simple to apply and very effective against fleas & ticks. There are a lot of mosquitoes where I live so I like the peace of mind knowing this product repels mosquitoes too. I just make sure I don’t miss a dose so my little guy is always protected!!

Rated 5 out of 5 stars
By FranktheDachshund on Jul 25, 2022

No Ticks after applying!

My dachshund loves the run through the woods surrounding our home which has led to a few tick removals. I have never tried Frontline Shield and was hesitant to believe the claim of killing and repelling ticks. My dachshund has not had a single tick on him since applying Frontline Shield. He has very sensitive skin and has not had any issues at the application site compared to other brands.

Rated 5 out of 5 stars