PetArmor Plus Flea & Tick Spot Treatment for Dogs, 5-22 lbs, 6 Doses (6-mos. supply)

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About This Item

Details

  • 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.

Ingredients

Instructions

FAQ

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.

Protect Your Dog With PetArmor Plus

Easy To Get: No prescription needed

Waterproof Formula: For all-weather outdoor play

30-Day Protection: Apply monthly for year-round protection

Breaks The Flea Lifecycle: Kills fleas, flea eggs, and larvae, plus chewing lice and ticks

Facing An Active Infestation?

Here’s what to do:

1. Treat Your Pet: Kill fleas on your pet with a fast-acting, non-prescription treatment.

2. Treat Your Home: Your home may be hosting many more adult fleas. Clean and treat your home with indoor and outdoor solutions.

3. Prevent: Protect your pet from recurring infestations by applying PetArmor every 30 days.

Choose the Right Weight Range

Each applicator is filled with the right amount for specific dog weight ranges. Tubes for smaller dogs contain less solution than tubes for larger breeds. Reapply monthly for ongoing protection.

How to Apply PetArmor Plus

1. Hold the tube with the notched end pointing up and away from the face and body.

2. Use scissors to cut off the narrow end of the applicator.

3. Invert the tube over your dog and use its open end to part the hair.

4. Apply directly on the skin, from the back of the neck to a point midway between the neck and tail.

About PetArmor

At PetArmor, protecting your pet is the most important goal. PetArmor is committed to providing pets with quality flea and tick solutions that are effective and easy to use. PetArmor products help keep your pet happy, healthy, and active—without the stress of pests.

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Questions & Answers

11 Customer Questions

Is this a once a month treatment? or daily?

Answer by Chewy • Jun 19, 2019
This topical treatment kills fleas, flea eggs, flea larvae, ticks and chewing lice for up to 30 days.

We were got this product it says it’s for 5lbs + we have a 4 lbs dog so it does matter. Can I use it on my 4lbs dog?

Answer by Chewy • Jul 25, 2019
This spot-on treatment is suitable for dogs weighing 4 to 22 pounds.

Can i used it for my 11 week old puppy

Answer by Chewy • Oct 17, 2019
This treatment is suitable for dogs 8 weeks or older.

Does it protect your dog from mosquitoes

Answer by Chewy • Oct 12, 2019
This product is not formulated to repel mosquitoes.
Reviews
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4.4
Rated 4.4 out of 5 stars
1440 Ratings
Terms & Conditions

Customers Mention

Chewy identifies key considerations with the help of artificial intelligence and our veterinarians.

Ease of Use

78% Positive

Effectiveness

77% Positive

Ingredients

79% Positive

Long-Term Benefits

78% Positive

547 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 Patricia on Nov 12, 2025

Crazy dog that’s all I’m gonna name

She won’t need this as a treat either I have to break it up. Don’t put it on her food because I’m afraid she won’t get it I break it up or cut it up in small pieces

She won’t need this as a treat either I have to break it up. Don’t put it on her food because I’m afraid she won’t get it I break it up or cut it up in small pieces cause she won’t eat it with other treats that are broken up. She leaves it aside so after the first month, I just took it. I cut it in small pieces and I make little sandwiches with American cheese out of it her, and I stood there and feed her each little piece so that I know she gets the pill.

Rated 5 out of 5 stars
By Isabella on Dec 26, 2025
Top 500 Contributor

My rescue came with fleas and this fixed it

This worked fast and effectively. My puppy came home from their foster with fleas, and PetArmor Plus Small cleared the issue within 48 hours. Very relieved and would

This worked fast and effectively. My puppy came home from their foster with fleas, and PetArmor Plus Small cleared the issue within 48 hours. Very relieved and would definitely recommend.

Rated 5 out of 5 stars
By Corry on Dec 9, 2025

Works just as well as expensive brands

I appreciate this item because, put simply, it works great and it's considerably cheaper than Frontline or other expensive brands. As far as I can tell, it's the

I appreciate this item because, put simply, it works great and it's considerably cheaper than Frontline or other expensive brands. As far as I can tell, it's the same product, just cheaper. Highly recommended!

Rated 4 out of 5 stars
By Laetitia on Nov 23, 2025

Works well but

I take my Golden Retriever puppy out to the woods, river etc. And I have never had an issue. But I recently switched to the tablet format because this “liquid” format

I take my Golden Retriever puppy out to the woods, river etc. And I have never had an issue. But I recently switched to the tablet format because this “liquid” format is quite oily and I am not fond of the smell either.

Rated 4 out of 5 stars
By Holly on Oct 25, 2025

Works well

I have four Jack Russells that are outside on our farm at least part of every day. No fleas and I seldom find a tick. The occasional tick is usually dead. As the

I have four Jack Russells that are outside on our farm at least part of every day. No fleas and I seldom find a tick. The occasional tick is usually dead. As the dogs run in woods and fields, I think this product does an excellent job. Lower price than it's competitors, which helps greatly with four dogs!

Rated 5 out of 5 stars
By Cynthia on Jan 10, 2026

Tick treatment

This flea and tick treatment covers all the insects that my dog would come in contact with and it’s easy to apply.

This flea and tick treatment covers all the insects that my dog would come in contact with and it’s easy to apply.

Rated 1 out of 5 stars
By Susan on Dec 19, 2025

Save your Money

This stuff didn’t have any effect on fleas but it had a strong chemical smell. My dog was lethargic when I dosed him but the fleas weren’t.

This stuff didn’t have any effect on fleas but it had a strong chemical smell. My dog was lethargic when I dosed him but the fleas weren’t.

Rated 2 out of 5 stars
By Alexia on Nov 28, 2025

Damaged box

Not sure how this product works yet, the box came in opened and bent up I’ll probably have to go else where to replace and actually try on my dogs

Not sure how this product works yet, the box came in opened and bent up I’ll probably have to go else where to replace and actually try on my dogs

Rated 1 out of 5 stars
By Anne on Sep 14, 2025

I will not buy this again!

Put this on my 14 lb poodle and he got really sick, I can’t prove it was this but it was right after his topical dose 2 weeks later and he is feeling better but

Put this on my 14 lb poodle and he got really sick, I can’t prove it was this but it was right after his topical dose 2 weeks later and he is feeling better but I start seeing fleas in him. Would highly recommend NOT BUYING this product. Say I’m on a fixed income and was trying to save money but that backfired. I will try to return it

Rated 3 out of 5 stars
By Susan on Jan 18, 2026

Best price

Best price for flea and tick prevention. I LIKE that but my pup doesn’t care.

Best price for flea and tick prevention. I LIKE that but my pup doesn’t care.