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

By PetArmor
Rated 3.7429 out of 5 stars

Pet Weight:

Selected: Pet Weight:

Pet Weight:

Selected: Pet Weight:


Selected: Count:


Selected: Count:

$39.98Chewy Price
$44.99Chewy Price
You save:
$5.01 (11%)
$37.98Autoship 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

About This Item


  • Fipronil and (s)-methoprene are the active ingredients in this topical flea and tick treatment for dogs.
  • Fast-acting formula starts working within 24–48 hours.
  • This waterproof treatment is formulated to help kill and protect against fleas, flea eggs, flea larvae, ticks and chewing lice.
  • Prevents repeat infestations for up to 30 days after application.
  • May be used monthly for year-round flea and tick protection.

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.

Frequently Bought Together

Compare Similar Items

Customer Rating
Rated 3.7429 out of 5 stars
Rated 4.1027 out of 5 stars
Rated 3.7465 out of 5 stars
Rated 3.6667 out of 5 stars
Rated 4.0076 out of 5 stars
Price Per Unit
$6.67/eaChewy Price
$4.99/eaChewy Price
$6.50/eaChewy Price
$6.67/eaChewy Price
$6.41/eaChewy Price
$39.98Chewy Price
$29.92Chewy Price
$38.95Chewy Price
$39.98Chewy Price
$38.45Chewy Price
$37.98Chewy Price
$28.42Chewy Price
$37.00Chewy Price
$37.98Chewy Price
$36.53Chewy Price
Top IngredientsActive Ingredients: Fipronil 9.80%, (S)-methoprene 8.80%.Active Ingredients: Fipronil 9.8%, (S)-Methoprene 8.8%.Active Ingredients: Fipronil 9.80%, (S)-methoprene 8.80%.Active Ingredients: Fipronil 9.80%, (S)-methoprene 8.80%.Active Ingredients: Fipronil 9.80%, (S)-methoprene 8.80%.
LifestagePuppy, Adult, SeniorAdultPuppy, Adult, SeniorPuppy, Adult, SeniorPuppy, Adult, Senior
Breed SizeSmall Breeds, Medium BreedsSmall Breeds, Medium BreedsSmall BreedsMedium Breeds, Large BreedsLarge Breeds, Giant Breeds

Questions & Answers

3 Customer Questions

My dog sleeps with me. Once it drys, is this safe for humans or would you have to keep the dog away from you for 24 hrs?
Answer by ChewyApr 10, 2019
It's recommended to keep treated pets apart from each other, other pets and children for 24 hours after treatment and until the product is dry. This helps prevent pets from ingesting the topical by licking or grooming one another.

Does PetArmor Plus withstand bathing. How long do we wait after applying to bath the dog?
Answer by ChewyAug 18, 2022
This product is waterproof and remains effective for 30 days. After applying the product, you will want to wait until the application area is dry before allowing your pet to get wet, usually around 24-48 hours. Your pet may be bathed in a gentle grooming shampoo after the product has dried.

Does Petarmor have an expiration date? If I buy a one year supply (2 6 month supplies), will it pass the expiration before the year is up?
Answer by ChewyJun 23, 2022
When properly stored and under ideal conditions, the product has a three-year shelf life. If there has been a variance in temperature (extreme heat for example), it may reduce the effectiveness of the product. Be sure to store the product in a cool (below 77°F/25°C) dry place inaccessible to children and pets. Do not refrigerate and protect from direct sunlight.

ReviewsWrite a Review

Rated 3.7429 out of 5 stars
70 Ratings
Would recommend to a friend

66 Customer Reviews

Always consult a veterinarian about your pet’s health needs. Customer reviews should not be used as medical advice.
Rated 5 out of 5 stars
By Kathy on Nov 28, 2023

It works for us!

I have used this product on our dogs for years. It worked well for us in a Southern state where fleas could be a a significant problem. After moving to New England where deer ticks are a HUGE health issue (Lyme disease, anaplasmosis, etc) for pets AND humans, we were cautioned by a veterinary practice that Pet Armor might not work so well here. That is not the case. Our dogs continue to receive protection from their monthly dose. and that means we humans are better protected, as well.

Rated 5 out of 5 stars
By Juanita on Aug 17, 2023

I've been really happy with this product!

As a dog owner, finding a reliable solution to keep my furry friend protected from fleas and ticks has always been a top priority. That's why I was thrilled to discover PetArmor Plus Flea & Tick Spot Treatment for Dogs. Not only does it provide a 6-month supply, but it also offers effective and long-lasting protection. The convenience of having a 6-month supply means I don't have to worry about running out of treatment. It gives me peace of mind knowing that my dog is safe and protected from ...

Rated 5 out of 5 stars
By asila on Aug 17, 2023

A Must-Have for Pup Parents

I would recommend this product to every dog owner out there. Not only is it waterproof, affordable, and easy to apply, but it also comes from a trusted brand. With its fast-acting formula, it kills and protects against fleas, ticks, and lice, providing year-round protection for our furry friends. And the best part? It lasts for 3 months! Say goodbye to repeat infestations and hello to a happy, itch-free pup. Trust me, this is a game-changer.

Rated 5 out of 5 stars
By Teri on Aug 3, 2023

Pet Armor Plus flea and tick

I am so happy I decided to try this flea and tick med. on my Ruby. After I put it on her it worked instantly. You see we have deer that are loaded with lice and mites and they go through our yard on a daily basis. they lay in our yards here and leave these nasty things all over the grass, so I get welts when I mow the yard or walk in it and no flea med. was working for Ruby who was getting bit a lot and scratching constantly. So I decided to try Pet Armor and she has not scratched once since I put it on. I just wish I could use it ! Thank you Chewey for having it on your site and making it easy to order.

Rated 5 out of 5 stars
By Taylor on Sep 2, 2023

Spot on solution for your pet's needs!

This product has been exactly what my furry friend needed! It's waterproof - so, no worries when it's bath time. Not only it's affordable, but also super easy to apply. Best part? It prevents repeat infestations for up to 30 days. Now that's some peace of mind!

Rated 1 out of 5 stars
By Jerseygirl on Aug 12, 2023


After applying this to my dog she was sick. She stopped eating and was nauseous. She began puking and had diarrhea. After a trip to the ER and week later, she is finally getting back to normal. I've seen slight negative reactions over the years from different topical solutions, but this was the worst. I will not ever use Petarmour again for any pets.

Rated 5 out of 5 stars
By Sarah on Sep 3, 2023

Easy to use and truly effective!

Love this stuff! Easy to apply, comes with a 3-month supply. Fast-acting, really saw results. It not only kills but also protects against fleas, eggs, larvae, ticks, and chewing lice. A fantastic solution for my dog's flea problem.

Rated 4 out of 5 stars
By Janice on Oct 5, 2023

Didn't really do the job.

Ended up having to use Nex Guard (oral chews) because flea infestation was too much for topical. I think this year is record breaking for fleas!

Rated 4 out of 5 stars
By Lynda on Jul 8, 2023

A Positive Review: Protecting My Pooch with Pet...

This is going to be a positive review because PetArmor Plus Flea & Tick Spot Treatment for Dogs is a game-changer! As a dog parent, I want nothing but the best for my furry friend, and this product delivers. Not only is it waterproof, but it also provides a 6-month supply, ensuring my dog is protected year-round. The fast-acting formula works wonders, effectively eliminating fleas and ticks within 24-48 hours. I love that it kills flea larvae and eggs, preventing repeat infestations. Plus, it...

Rated 5 out of 5 stars
By Shahronda on Jul 7, 2023

A Great Find for My Dog

I've been really happy with the PetArmor Plus Flea & Tick Spot Treatment for Dogs! It has been super effective for up to 30 days, which is a huge relief for both me and my furry friend. Say goodbye to pesky fleas and ticks! The best part? It's a 6-month supply, so I don't have to worry about reordering every month. My dog is now itch-free and protected all year round. The only thing that could make it even better is more affordable pricing, but the results are definitely worth it. Highly reco...