






🐾 Keep your best friend pest-free and unstoppable!
SENTRY Fiproguard is a vet-quality topical flea and tick treatment designed for small dogs (5-22 lbs) and puppies over 8 weeks old. Its fast-acting fipronil formula kills fleas, ticks, and chewing lice for up to 30 days per application. Waterproof and safe for breeding, pregnant, and lactating dogs, it comes in a convenient 3-month supply of easy-to-apply drops.










| Active Ingredients | Fipronil |
| Brand | Fiproguard |
| Customer Reviews | 4.2 out of 5 stars 9,076 Reviews |
| Item Form | Drops |
| Item Volume | 0.07 Fluid Ounces |
| Item Weight | 1.71 ounces |
| Scent | Topical |
B**R
A Game-Changer!
I’ve been using Sentry Fiproguard for my large dog for several months now, and I couldn't be happier with the results! This flea and tick prevention product works incredibly well. It’s easy to apply, and I love how quickly it starts working to keep those pests away. My dog has never had any issues with fleas or ticks since using it, and it’s been a huge relief knowing he’s protected. The product comes in convenient, pre-measured doses for each month, so there’s no mess or guesswork. I also appreciate that it’s designed specifically for large dogs like mine (89-132 pounds), ensuring that he gets the right amount of protection. The best part? It doesn’t irritate his skin like some other treatments I’ve tried, and he doesn’t even seem to notice when I apply it. Highly recommend this flea and tick treatment if you want something effective, affordable, and easy to use. It’s been a game-changer for my dog’s health and comfort!
B**M
Works Great – No More Fleas or Ticks!
We have a wooded yard and used to struggle with fleas and ticks on our small dog. Since using Sentry Fiproguard for the past year, we haven’t had any issues! It’s easy to apply, comes with clear instructions and pre-measured doses. I use auto-ship so we never miss a month. Great price and very effective—highly recommend!
J**R
Works fine.
As described.
J**S
Seems equivalent to Frontline Top Spot
In the South flea protection is needed all year. I've used Frontline Top Spot for years with good results. I've used this product for about 1 year without any flea issues. When it dries after the application it does leave a bit of white residue, unlike Frontline, but this can be brushed off. The dogs go outdoors, walk through the neighborhood with me, and go to dog parks. Likely have been exposed to fleas but without any taking up residence. The product disperses across the animal's skin, but requires some oil to do so. You should avoid bathing the animal before or after application. I allow about a week on both sides, but this may be longer than required. Some reviews say this is not effective with an existing infestation, which is not completely true. This product only works on adult fleas that are on the animal. It will eventually end the infestation, but only in a matter of weeks, since it takes about two weeks (as I recall) for fleas to progress from eggs to adults.
P**E
Safe and reliable
I have been using Sentry Fiproguard in my dog rescue for many years and have never had an incident with it. It has not once failed to keep my fogs flea free, and I have had no medical issues with them from sing it. Just today I was talking with another rescuer who used another brand, a well known name, on one of her poodles and it had a seizure. The vet said that there was no doubt it was a reaction to the flea med. I'm grateful nothing like that has happened with the Sentry product. I've never had to waste out a dose because the ampule was badly made and the med leaked out. And I'm grateful for it's lower cost, I go through a lot of this stuff here!
S**R
this product did not help with fleas and ticks
The first time I bought this product for my two small Chihuahuas I brought two 6 months, one box for each of my small dogs for 3 months. The first box worked very well the first three months on both dogs, I was impressed. When I opened the second box the tubs where all sucked in but I could squeeze out the medicine for the next 3 months but my dogs did not started showing any signs of relief from scratching fleas for the next 3 months from the second box of fleas medicine did not work. I stored this flea medicine in my desk in the house that has AC and Heat and could not understand why the second box all the tubs were sucked in and did not relieve my dogs from Asian. The next 6 month I reorder 2 more boxes 3 months on tub for each of my dogs the second time because the first order one box did work very well. Another note: before I put flea medicine on my dogs (who are not outside animals) I gave them both flea baths once a month each time. The next day I applied this product. I found this product again did not work my dog started again scratching the first month. The second order 2/ 6 months has not worked. I am now convinced this product does not work and my dogs had to suffer with fleas. Fool me once shame on me, fool me twice shame on you.
J**Y
It’s okay.
It’s probably 3.5 stars. Decent price and decent performance. I suppose it might actually perform well for a lot of people. I don’t think there is anything wrong with choosing this product. I however will only use it in the winter/fall and only spring/summer for a backup. That is why I tried this to begin with; the regular topical solution we use kept being out of stock. It is a little stinky. No surprise, they all are. It actually might smell slightly less powerful than the usual one we use. The stink fades Seems fine. I found no ticks or fleas. I have used the product twice (2 months). I did however notice a couple times a little bug or two flying around the dog’s ears. At the time, I swatted them away and thought hmm maybe it isn’t as powerful… well lol my mistake. I actually just realized this product doesn’t advertise that it deters mosquitoes, so that was my fault. So yes I’ve seen him scratch a few times but nothing major and I never saw/found anything. I think the product does advertise what it claims. I take my dog on at least one adventure a week in fields, tall grass, or other stinky spots, so I thought best to stick with the stronger stuff for summer bug months. Dogs that aren’t as active, might be fine. My dog is a husky that is spoiled rotten with 3 walks a day. It is just as annoying to apply as any topical solution. Ease of application is fine, normal. Wear gloves I attached 2-3 photos. This product, Sentry or whatever, mentions preventing mites and lice. My usual product, Provecta(based on an animal eye specialists advice), doesn’t mention those actually. But it does prevent mosquito bites, and I do find value in that. They are out heavy this time of year driving me nuts. The photos show the active ingredients (minus “OTHER” on both! Notice this sentry has a lot of OTHER… Middle ingredient on Provecta I guess is for mosquitoes and bottom one supposedly is larvae. I didn’t see larvae mentioned on Sentry. Both the other ingredients are broad spectrum versions of insecticides. -fleas -ticks -mites -lice -doesn’t stop mosquitoes -doesn’t kill larvae? Not sure Review over If you need extra details on the specialist thing, here is a short version: Dog was having freaky symptoms in one eye. Ended up seeing an animal eye specialist that asked about his monthly heartworm stuff. (3rd picture is what was recommended). This Dr does not like dual plus heartworm/bug meds together, in general, but specifically for dogs that often get eye issues, genetic disorders, pure breed type things. So cocker spaniels for instance, are known to get thigh problems but also glocoma. Huskies like I have, also are known to develop genetic eye issues…. He told us to stop using a dual plus one in all pill. Always use topical for our case and heartworm separate. I’m not naming the product that caused this scary issue because it was extremely unusual symptoms and any other dual product could have caused similar issue with our dog. Sometimes unfortunately different medicines cause weird symptoms to certain people/animals and may not be common. We are only one of a few recorded cases of this eye issues occurring from a heartworm pill over years of studies. So it is rare. Just be cautious and talk to your vet. We just have to use a heartworm medicine that does not also contain the extra chemicals and have to always do separate topical. Was a huge deal at the time, but since switching, zero issues. Other than price. The vet stuff is expensive
B**O
Worked on my 4 dogs
A large old mutt, an Aussie, a YorkiePoo and a Choodle. I actually only used this product for 2 months last Summer. I had no fleas or ticks over that period. I quit applying it too early in the fall and found a few ticks after that. This year I will start as soon as I see bugs and stop only when fully into winter. I take my dogs walking on trails frequently, so they gave it a good test. My primary concern is with ticks as these can be life threatening to a dog, and I did not find one tick while using it. I check my dogs frequently for these blood suckers. I did not have a flea problem either, even after I quit using it in the fall. Perhaps fleas do not come out like ticks in late fall warm spells. I found ticks even in February a couple years ago during a very mild Midwestern winter. Regarding the bad reviews, go figure. My understanding is that this is a preventative, if you have a preexisting problem on the dog or in the home getting that under control can be a more arduous task. However people trash Frontline as well. Frontline is incredibly more expensive. The active ingredient is identical, although I know that does not always guarantee products to work identically. However this worked for my 4 dogs, I certainly would have found ticks on them had it not worked, after about 50 or so trail hikes, including at the large dog park that we go to. Regarding fleas, I had none, but I had none to start with. In my experience all other topical flea/tick treatments have been ineffective, only the active ingredient in this product has been effective. I will wait until the end of this year before I firmly decided that brand is great stuff, if not as good as Frontline, close enough. My new Chiwennie adds a 5th test subject to the mix. However I do feel pretty strongly that it is based on my last year's experience. I realize that Frontline also has a product that kills eggs as well, but feel that if you don't let the problem get started, that is probably not super consequential, not enough to justify the dramatically increased cost of that product.
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