Sentry FiproGuard Flea & Tick Spot Treatment for Dogs, 5 to 22-lbs, 6 Doses (6-mos. supply)

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About This Item

Details

  • The active ingredient is Fipronil a powerful chemical used in leading tick medications.
  • Treatment kills adult fleas and ticks and protects against chewing lice.
  • Use on your favorite puppy eight weeks and older.
  • Stop the flea life cycle and kill flea eggs and larvae for up to 12 weeks.
  • Apply this treatment for relief that is fast acting, long-lasting, and waterproof.

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

15 Customer Questions


How long does it take for it to start killing the live flea's?

Answer by ChewyFeb 12, 2018
You should begin to see results within 12 to 24 hours after applying. This product stops the flea life cycle and kills flea eggs and larvae for up to 12 weeks.

Does the treatment kill ticks that are already on your dog prior to application?

Answer by ChewySep 03, 2024
This product can take some time to work on ticks, especially if they have already latched on. No product will be able to prevent a tick from crawling on your pet. The product should begin to kill within 24-48 hours but may take up to 72 hours to reach its full effectiveness.

How do you apply it?

Answer by ChewyJul 18, 2023
To apply this treatment, invert the tube over the dog and use the open end to part the dog’s hair. Apply as a spot to the dog’s back between the shoulder blades. Squeeze tube firmly to apply all of the solution to the dog’s skin.

Does this work for mosquitos?

Answer by ChewyJun 21, 2021
This product kills adult fleas and ticks and protects against chewing lice. It does not prevent or kill mosquitos.

3.8
Rated 3.8 out of 5 stars
306 Ratings

207 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 Rebecca on Nov 25, 2025

This has worked for my dogs for years.

I have been using Fiproguard for years, through several moves to different states. It has never failed to work for my dogs. It’s affordable and reliable. I give

I have been using Fiproguard for years, through several moves to different states. It has never failed to work for my dogs. It’s affordable and reliable. I give it 5 stars.


Rated 3 out of 5 stars
By Betty on Oct 19, 2025

Always chewy,

Not much we're about the first two and a half weeks it worked real good after that they started scratching again so not very happy

Not much we're about the first two and a half weeks it worked real good after that they started scratching again so not very happy


Rated 5 out of 5 stars
By Cynthia on Nov 16, 2025

Flea control

This flea treatment is a lot better than K-9 it lasted for 4 weeks like it said it would

This flea treatment is a lot better than K-9 it lasted for 4 weeks like it said it would


Rated 2 out of 5 stars
By Machelle on Jun 24, 2025

Doesn’t work

It was good for maybe a week. Fleas are right back on my babies. Gonna have to go back to my other flea med.

It was good for maybe a week. Fleas are right back on my babies. Gonna have to go back to my other flea med.


Rated 2 out of 5 stars
By Barbara on Jun 21, 2025

Flea control

This product did not work for my dogs. I also purchased it for my cats and it did not work either.

This product did not work for my dogs. I also purchased it for my cats and it did not work either.


Rated 5 out of 5 stars
By Kathy on Jul 17, 2025

Great results

Been using it for years. Works well. No fleas or ticks.

Been using it for years. Works well. No fleas or ticks.


Rated 5 out of 5 stars
By Mary on Aug 16, 2025

Reviews

Love this and it works. Great price

Love this and it works. Great price


Rated 5 out of 5 stars
By Cindy on Oct 10, 2025

I like this product

It works good

It works good


Rated 5 out of 5 stars
By DIANA on Sep 29, 2025

fast service

needed it quick

needed it quick


Rated 1 out of 5 stars
By Sue on Jun 18, 2025

Sentry

Makes her sick and lethargic.

Makes her sick and lethargic.