PetArmor Flea & Tick Spot Treatment for Dogs, 23-44 lbs

By PetArmor
Rated 3.2778 out of 5 stars

Pet Weight:

Selected: Pet Weight:

Pet Weight:

Selected: Pet Weight:


Selected: Count:


Selected: Count:

$11.97Chewy Price
$16.99Chewy Price
You save:
$5.02 (30%)
$11.37Autoship Price
(Save an extra 5%)

Why Autoship?

  • Save 5% on all future Autoship orders
  • Set your schedule based on your pet's needs
  • No fees, no commitments - skip, change or cancel anytime.

In Stock
FREE 1-3 day delivery over $35

Frequently Bought Together

Harris Nite Light Flea & Insect Trap Glue Board Refills, 4 count
Rated 3.0769 out of 5 stars
$8.12Chewy Price
Total Price: $50.08

About This Item


  • Formulated to kill adult fleas, chewing lice, as well as a variety of ticks including deer ticks, which can cause Lyme disease.
  • May also help treat and control sarcoptic mange, also known as scabies, which results in itchy and irritated skin.
  • Contains the active ingredient fipronil in a monthly dosage to stop infestations and help prevent them from recurring.
  • Easy-to-use, fast-acting topical application that is waterproof and provides lasting control.
  • Specially formulated for dogs at least 8 weeks old and who weigh between 23-44 pounds.

See More



Play Video: Learn More About PetArmor From Our Team of Experts
Learn More About PetArmor From Our Team of Experts

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.

Compare Similar Items

Customer Rating
Rated 3.2778 out of 5 stars
Rated 3.1818 out of 5 stars
Rated 3.3333 out of 5 stars
Rated 2.4 out of 5 stars
Rated 3.3158 out of 5 stars
Price Per Unit
$3.99/eaChewy Price
$3.94/eaChewy Price
$3.15/eaChewy Price
$3.75/eaChewy Price
$5.10/eaChewy Price
$11.97Chewy Price
$15.75Chewy Price
$12.58Chewy Price
$14.99Chewy Price
$15.29Chewy Price
$11.37Chewy Price
$14.96Chewy Price
$11.95Chewy Price
$14.24Chewy Price
$14.53Chewy Price
Top IngredientsFipronil, (S)-methopreneClove Oil 7.5%, Thyme Oil 2.5%, Cinnamon Oil 2.5%...Permethrin: 45%, S-Methoprene: 3%, Other Ingredients: 52%.Permethrin: 45%, S-Methoprene: 3%, Other Ingredients: 52%.Fipronil, (S)-methoprene
LifestagePuppy, AdultAdultAdultAdultPuppy, Adult
Breed SizeMedium BreedsMedium BreedsMedium Breeds, Large BreedsSmall Breeds, Medium BreedsExtra Small Breeds, Small Breeds

Questions & Answers

Be the first to ask a question.

ReviewsWrite a Review

Rated 3.2778 out of 5 stars
18 Ratings
Would recommend to a friend

18 Customer Reviews

Always consult a veterinarian about your pet’s health needs. Customer reviews should not be used as medical advice.
Rated 3 out of 5 stars
By ONeilfamily on Aug 7, 2023


This is a messy application. Works just fine but left my black dogs hair white.

Rated 1 out of 5 stars
By Davia on Aug 3, 2023

This doesn’t work

Rated 5 out of 5 stars
By Daxamillion on Sep 14, 2022

Great for Winter months

I love PetArmor and PetArmor plus for the WINTER months. The fipronil ingredient is also effective for scabies on infected areas for dogs. During the summer months I use Bravecto for preventive care due to my dog is outside more around more insects and bugs.

Rated 1 out of 5 stars
By a68dart on Apr 16, 2022

Don't buy this

Doesn't work at all, fleas love it and will line up to drink it. Won't kill anything. We live and a mild flea area, and this product does not work. Used as directed. No joy. Chewey does have fast shipping and good service.

Rated 5 out of 5 stars
By MVgirl on Jun 16, 2022


I googled.......and you were most affordable for my 6 dogs....Thankyou.......

Rated 5 out of 5 stars
By RSC169 on Jan 25, 2022

Works Well

I bought this for my dogs to try and save money and I am glad that I did because it works just as well as Frontline and doesn’t cost as much. Will definitely recommend.

Rated 1 out of 5 stars
By Sally on Oct 29, 2021

AVOID - Stops Working

PetArmor seemed to work for the first year I had my rescue dog. However, she just got walloped by fleas that turned into an awful staph infection from the itching - it was horrible. And we never skipped a dose of this stuff. Our vet says PetArmor is known for losing effectiveness - I would absolutely avoid this and just pay more for a better one. I assure you, I wish I could go back and trade the cheap stuff (of which I still have unopened boxes) for the vet bill, the infection and itching meds, more expensive flea treatments, and hot-washing all our bedding and blankets. Oof. PASS.

Rated 5 out of 5 stars
By Ginny on Jan 23, 2022

Great flea products

Your flea products work. No adverse reactions. Easy to apply

Rated 5 out of 5 stars
By Tinker on Mar 24, 2021

Works Great!

This product does exactly what its suppose to do. I read through some of the Chewy reviews on it and it's a shame that people think this product is to treat your dog for fleas. This product is a preventive measure. You give this product to prevent fleas, not to get rid of them. I've been using this for 2 years and have had no issues with my dogs, nor did they get fleas or ticks. I hope this review will help correct the rating that this product has unfairly gotten

Rated 1 out of 5 stars
By Freckles on Feb 13, 2021

Not Working

My new dog from the shelter came with fleas. I've fought them back with flea baths and one-dose treatment (Capstar?) and thought they were gone. Her first dose of PetArmor didn't seem to do anything and it isn't even flea season. I'll try it another month - if it doesn't work I'll try something else.