PETARMOR Plus Flea & Tick Spot Treatment for Cats, over 1.5 lbs, 6 Doses (6-mos. supply) -

PetArmor Plus Flea & Tick Spot Treatment for Cats, over 1.5 lbs

By PetArmor
Rated 3.3538 out of 5 stars

$39.98Chewy Price
$44.99Chewy Price
$37.98Autoship Price
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About This Item


  • Fipronil and (s)-methoprene are the active ingredients in this topical flea and tick treatment for cats.
  • 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.

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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.

Questions & Answers

16 Customer Questions

Does this product expire?
Answer by ChewyJul 26, 2018
This product does not expire. All PetArmor products should be stored at room temperature in their original packaging and are good to use as long as the pipettes remain sealed.

Do the fleas have to bite to die?
Answer by ChewyJul 11, 2017
The fleas will not have to bite your pet to die. The product should begin to kill fleas within about 12 hours of contact with your pet. It may take closer to 48 hours to begin to kill ticks.

Is this product safe for an old cat?
Answer by ChewyFeb 18, 2021
This treatment is safe for all cats 8 weeks and older.

Can you use it on a ferret?
Answer by ChewyJun 09, 2021
This treatment is designed for use only on cat and kittens over 1.5 pounds and over 8 weeks of age. It is not suitable for ferrets.

ReviewsWrite a Review

Rated 3.3538 out of 5 stars
390 Reviews
Would recommend to a friend

390 Customer Reviews

Filter by reviews that mention

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 Furmomx2 on Dec 30, 2022

No fleas! Its been over a year.

I purchase this monthly topical treatment from my nephew cat whom weighs about 6#. She likes to go outdoors if it is nice outside, but comes inside when it gets dark and stays in the house. I've been using this for over a year now since he got her. She was from a litter in the neighborhood that momma set up on someone's front porch. She is what the vet calls a Short haired domestic? I am a dog person but this cat has a lot of character likes dogs do; and she's becoming my friend. LOL Product works great. I actually use the topical on my dog (75# blue nose pit) but my female (75# American Staffordshire terrier) she has a flea dermatitis so had to switch her to Nexgard. I have used all the petarmor products on my dogs and now his cat and they all work great for flea prevention except the one I mentioned above. All our animals are spayed and neutered to help protect the pet population! ;-)

Rated 5 out of 5 stars
By Marilyn on Dec 6, 2022

Thank you for your continued excellence

I have, and will continue to value Chewy's large variety of products for both my cat and dogs, some things that I can no longer purchase always have it available. When my dog recently passed away after a wonderful 14 year run with life, the bouquet and card that arrived was a surprise, but sincere confirmation that your philosophy is also to care for animal owners. Thankyou. P.S. In the past small containers of medication always arrived in a huge box that would not fit in my mailbox. I even had contacted the distribution/packaging deptpartment of Chewy to explain that it actually created a bit of a dilemma for me as I had to travel to pick it up. I received the nicest little size-appropriate box in my mailbox the other day with meds....Oh, Thank you!!

Rated 4 out of 5 stars
By ryn2011 on Nov 10, 2022

Works Very Well

This product works just as well as other more expensive brands. I used this in conjunction with vacuuming and a household spray. We had foster kittens that came with fleas and they infested out home for about a week. It worked fast, didn't bother the cats skin and was easy to apply. I will continue to use this brand.

Rated 5 out of 5 stars
By mamasue on Jan 4, 2023

Cheaper than most

I have 5 cats and 1 dog that use this treatment on a regular basis. Does the job and costs much less than major brands

Rated 1 out of 5 stars
By girly on Oct 24, 2022

Not effective.

We bought this product for our THREE cats. We put it on them prior to bathing them and cleaning our entire house. Two weeks later we are doing more baths and a different treatment because they're almost worse than before this treatment.

Rated 2 out of 5 stars
By Jeannie on Aug 22, 2022

Ok for indoor cats, not recommended for outdoor cats

PetArmor worked fine for a year when Fluff was a kitten and stayed indoors. When he became a fully grown cat that loved to venture outside multiple times during the course of a day, this treatment was no longer as effective. Last summer, we had really bad flea infestations in both of our homes. I was covered in flea bites from head to toe. It was absolutely miserable. I had to clean and disinfect everything. It took 5 long months to clear away the infestation. In spite of my best efforts to prevent another recurring infestation this summer, the leftover treatment we used for the second kitten we rescued did not work, even though she stays indoors. She still picks up whatever fleas Fluff brings in, and constantly scratches herself. Our second home is now infested with fleas again. I'm researching other treatment options and don't plan to buy or use PetArmor products again. It may work fine for cats that stay strictly indoors, but I certainly wouldn't recommend it for cats that frequently go outdoors, or indoor cats that come into contact with cats that like to go outside.

Rated 5 out of 5 stars
By Kath on Feb 20, 2023

Worth the money

I have used this on my pets for years and never had a problem

Rated 5 out of 5 stars
By Cait on Sep 4, 2022

Finally something works!!

I have flea smoke bombed the house, bathed the cats, tried numerous brands of flea drops, oral flea capsules and was at my wits end. It was truly an infestation of fleas. I decided to try petarmor out and didn't hold my breath for this working but it did! Day 1 I did not see any changes but on Day 2 and Day 3 I brushed DEAD fleas off the cats. I feel like a weight has been lifted and will be buying this product again as needed. :)

Rated 1 out of 5 stars
By Angie on Nov 7, 2022

This doesn't work

This product did not kill fleas on any of the multiple pets I used it on. Unfortunately wasted my money and now having to wait to buy a product that works

Rated 1 out of 5 stars
By Lucky7 on Aug 31, 2022

Bad allergic reaction

I put this stuff on my cat and she immediately went into hiding. 5 days later she comes out from wherever she was, can barely move, crust all over her mouth from where she was chewing on herself. I don't think she's eaten or drank anything in days. She's laying here like she's having little seizures. On my way to the emergency vet as we speak