Sentry FiproGuard Flea & Tick Spot Treatment for Cats, over 1.5 lbs, 3 Doses (3-mos. supply)

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About This Item

Details

  • Contains the top vet-recommended active ingredients fipronil and s-methoprene, highly effective ingredients that are proven to protect your pet and home from dangerous pests by breaking the flea life cycle and killing flea eggs and larvae for up to 12 weeks
  • Kills adult fleas, flea eggs, flea larvae, ticks, and chewing lice
  • Protects your pet from the transmission of Lyme and other harmful diseases that can be carried by these pests
  • Fast-acting, long lasting, waterproof solution
  • Easy to use squeeze-on application can be used on cats over 1.5 pounds that are 8 weeks of age and older

Ingredients

Instructions

FAQ

Learn More About Sentry 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

6 Customer Questions


does this work or larger cats? over 15 lb

Answer by ChewyFeb 13, 2018
This product is suitable for cats over 1.5 pounds.

Does this also control ear mites? We foster kittens often and with them almost always comes ear mites....

Answer by ChewyAug 18, 2019
This product is only formulated to kill adult fleas, flea eggs, flea larvae, ticks, and chewing lice.

Can you use a flea collar with it?

Answer by ChewyOct 23, 2019
You should not apply more than one treatment to your pet at a time.

Does this kill fleas and ticks on contact, or must a flea or tick bite first to die/be repelled?

Answer by ChewyMay 19, 2025
This product is applied to your pet topically and kills fleas through contact with the product on your pet’s skin. Fleas do not have to bite to die.

3.7
Rated 3.7 out of 5 stars
101 Ratings

70 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 MARIAH on Sep 5, 2025

Did not work.

I have used Sentry in the past, but this time it did not work. My cats are still scratching and I am still seeing fleas. I found out from my vet that spot treatments

I have used Sentry in the past, but this time it did not work. My cats are still scratching and I am still seeing fleas. I found out from my vet that spot treatments like Sentry and Frontline are not working in most areas; that only oral meds seem to work right now.


Rated 5 out of 5 stars
By Robert on Aug 8, 2025

No fleas or ticks

We don’t have an issue with our cats bringing any fleas or ticks.

We don’t have an issue with our cats bringing any fleas or ticks.


Rated 5 out of 5 stars
By claire on Jun 5, 2025

Sentry flea & tick

Not my first purchase of this product. I've been using it for years. Easy to apply and no strong smell and it works.

Not my first purchase of this product. I've been using it for years. Easy to apply and no strong smell and it works.


Rated 5 out of 5 stars
By Bill on May 21, 2025

Ease of use and efficiency.

Order came right on time. Web site is easy to understand.

Order came right on time. Web site is easy to understand.


Rated 5 out of 5 stars
By Holly on Jun 16, 2025

Great product

This works well on my cats.

This works well on my cats.


Rated 5 out of 5 stars
By 11akasperdrive on Oct 28, 2024

Agreed with our cats

Our cats are considered "sensitive " to certain things. This is the only flea treatment that not only works great but also doesn't affect our cats in any negative

Our cats are considered "sensitive " to certain things. This is the only flea treatment that not only works great but also doesn't affect our cats in any negative way. Plus dries quickly


Rated 5 out of 5 stars
By Shari on Dec 24, 2024

Worked fast

I used this to treat a feral litter and it worked fast and they seem much more comfortable

I used this to treat a feral litter and it worked fast and they seem much more comfortable


Rated 5 out of 5 stars
By Oksana on Jan 24, 2024

Very pleased

I adopted a cat and did research on what flea meds to get and the reviews were very mixed but I am very happy with how well and quickly it worked. My fluffy buddy

I adopted a cat and did research on what flea meds to get and the reviews were very mixed but I am very happy with how well and quickly it worked. My fluffy buddy is big free and very happy.


Rated 3 out of 5 stars
By Rick on Apr 26, 2024

Survey

Nor sure that it works very well. Does this product contain Lead?

Nor sure that it works very well. Does this product contain Lead?


Rated 5 out of 5 stars
By Jennifer on Apr 16, 2024

Sentry

I've been using this brand for years on all my cats. It works

I've been using this brand for years on all my cats. It works