Sentry FiproGuard Flea & Tick Squeeze-On for Dogs (23-44 lbs)

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6 treatments
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FiproGuard contains the same active ingredient as Frontline Top Spot. It is a trusted, effective way to kill adult fleas and ticks. It protects your dog against chewing lice as well.

Key Benefits

  • Contains Fipronil, same active ingredient as Top Spot
  • Kills Fleas, ticks, eggs, larva, and chewing lice
  • Protects against chewing lice
  • Can be used on puppies 8 weeks and older
  • Effective, affordable way to protect your dog


Harmful if swallowed. Causes eye irritation. Avoid contact with skin, eyes or clothing. Wash hands thoroughly with soap and water after handling and before eating, drinking, chewing gum, using tobacco, or using the toilet. For external use on dogs only. Individual sensitivities, while rare, may occur after using any pesticide product on dogs. Certain medications can interact with pesticides. Do not treat your dog with more than one pesticide product at a time. Over dosing your dog can result in serious illness and even death. Consult a veterinarian before using on medicated, debilitated, aged, pregnant or nursing dogs. Consult a veterinarian before using on dogs with known organ dysfunction. If your dog is exhibiting signs of and/or is being treated for skin dermatitis, talk to your veterinarian before applying any topical flea and tick control product.

Active Ingredients

  • Fipronil 9.70%

See all items by Sentry

  • Item Number
  • Brand
  • Breed Size
  • Lifestage
    Puppy, Adult


Size Dogs 4 to 88 pounds Dogs 89 to 132 pounds
Step 1 Remove product tubes from package. Separate one tube from the others. Remove product tubes from package. Separate one tube from the others.
Step 2 Hold the tube with notched end pointing up and away from the face and body. Use scissors to cut off the narrow end at the notches. Hold the tube with notched end pointing up and away from the face and body. Use scissors to cut off the narrow end at the notches.
Step 3 Invert tube over dog and use open end to part the dog’s hair. Invert tube over dog and use open end to part the dog’s hair.
Step 4 Apply as a spot to the dog’s back between the shoulder blades. Apply as a stripe from the back of the neck to a point midway between the neck and tail.
Step 5 Squeeze tube firmly to apply all of the solution to the dog’s skin. Squeeze tube firmly to apply all of the solution to the dog’s skin.

Additional Tips

  • Read the label completely: As with medications for humans, carefully read and follow all label instructions thoroughly before purchase and application.
  • Weigh your pet: Don’t guess! Be sure to weigh your pet to ensure that your animal’s weight matches the dosage listed on the product package.
  • Only apply product intended for your pet’s species: Never use a flea and tick treatment and prevention product intended for dogs on a cat and vice versa.
  • Avoid double dosing: Our squeeze-on products are designed to work alone and NOT in combination with other flea and tick control products. Check the product label of the flea and tick treatment used prior to ensure the recommended time has passed since the last application of any product before applying a new product.
  • Separate multiple pets: Separating pets ensures that the flea and tick treatment doesn’t rub off or pets lick the product off each other. As with any flea and tick treatment and prevention squeeze-on, even the smallest amount of product that gets into a dog’s or cat’s mouth can cause drooling or foaming — and in rare cases can result in death.
  • Do NOT divide tube doses between multiple animals: For example, do not use half a dose made for a 40-lb. dog on a 20-lb. dog. Also, do not combine two tubes of a lower weight break for a larger dog. Always use the full tube on the pet per the product’s application guidelines.

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Customer Reviews

Rated 3.7 out of 5 by 22 reviewers.
Rated 1 out of 5 by Does not seem to work I ordered this product reluctantly as my usual brand of flea/tick preventative was not available and it does not seem to be working for my pets. I have found numerous fleas on both of my dogs, despite treating them with this preventative for several consecutive months now. December 7, 2016
Rated 3 out of 5 by Unsure if it works or not I have three dogs. One of them was really scratching to the point of making some sores. Then I noticed the other two beginning to scratch. I purchased the FiproGuard and put it on all three. Two weeks later, they are all three still scratching. I bathed the worst of the three with a dry skin shampoo from the vet. It hasn't seemed to relieve her yet. I am taking her to the vet tonight and I will let him take a look at her. So I can't say if the FiproGuard worked or not. November 7, 2016
Rated 5 out of 5 by great service, great products Since I ordered the flea and tick medication, which I received in less than 48 hours, I have also ordered food, treats and a bone. I place the order in the afternoon on Wednesday and received it Thursday. Wonderful service, great products and the best prices and free shipping. We will be lifelong customers! September 30, 2016
Rated 5 out of 5 by Very good I am pleased with my Sentry FiproGuard for dogs, my dog tolerates it well, no allergic reaction on the skin after use, dries within a reasonable amount of time. The price is reasonable but the main thing is that it does the job and I love CHEWY. August 23, 2016
Rated 1 out of 5 by Does not work Applied twice following the directions. Does not kill fleas as advertised on my 20lb Jack Russel that doesn't go in water August 2, 2016
Rated 4 out of 5 by Smells good to humans, really annoys the dog Fipro is a good chemical for killing fleas and ticks, same as the big name brands. But this smells all flowery and has a heavy scent. My dog went into the same behavior as when she was sprayed by a skunk, that is, she spent the next five minutes rolling and pushing herself along the ground to clean it off. That worked with the skunk spray, so we'll see if there's any Fiipro left on her to work. I got it right onto her skin under her coat so it should be OK, otherwise this was a bust! :-) April 22, 2016
Rated 3 out of 5 by Improvements Needed Compared to other fipronil-containing products, the cartridges contain much more liquid for a given size of dog which makes confining the liquid to the application locations difficult. It also dries to a powdery white streak hat extends as far as the liquid is able to reach. The packaging is flimsy and in the first two cartridges I opened for my two dogs, one was empty and had no liquid in it. Hopefully it works to repel ticks (too soon to tell), but this product could certainly use improvement. April 14, 2016
Rated 5 out of 5 by Works just as well as Frontline It's been such a relief to discover this product -- I know I can give my dog the protection of Frontline at a fraction of the cost. I have been using this product for years and it has kept my dog flea and tick-free. It dries quickly and doesn't leave an oily residue. Highly recommended. April 20, 2016
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