Onguard Plus Flea & Tick Spot Treatment for Dogs, 23-44 lbs

By Onguard Plus
Rated 3.925 out of 5 stars

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$29.91Chewy Price
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This Item – Onguard Plus Flea & Tick Spot Treatment for Dogs, 23-44 lbs, 6 Doses (6-mos. supply)
Rated 3.925 out of 5 stars
$29.91Chewy Price

Buy Onguard & Chewy gives One to a Shelter in Need

Total Price: $68.33

About This Item


  • Contains the same two active ingredients as the leading national topical flea and tick brand.
  • Topical treatment kills all life stages of fleas and ticks on dogs at least eight weeks old and ranging from 23 to 44 pounds. Helps control infestations of chewing lice and sarcoptic mange mites.
  • Helps break the flea life cycle and rids your dog of flea eggs, larvae, pupae and adults. Also kills tick larvae, nymphs and adults.
  • Effective against fleas that cause flea allergy dermatitis as well as brown dog ticks, American dog ticks, lone star ticks and deer ticks that may carry Lyme disease, when used as directed.
  • Redesigned applicator makes it easier to apply this long-lasting and waterproof treatment that provides protection even after your dog has a bath, or gets wet from the rain or plays in water.

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Learn More About Onguard Plus From Our Team of Experts

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Top IngredientsActive Ingredients: Fipronil 9.8%, (S)-Methoprene 8.8%.Active Ingredients : Fipronil 9.8% , (S)-methoprene 8.8%.Fipronil, (S)-methoprenePermethrin: 45%, S-Methoprene: 3%, Other Ingredients: 52%.Active Ingredients: Fipronil 9.8%, (S)-Methoprene 8.8%
LifestageAdultPuppy, Adult, SeniorPuppy, AdultAdultAdult
Breed SizeSmall Breeds, Medium BreedsSmall Breeds, Medium BreedsMedium BreedsSmall Breeds, Medium BreedsExtra Small Breeds, Small Breeds

Questions & Answers

8 Customer Questions

Is this safe for older dogs?
Answer by ChewyApr 21, 2021
This flea treatment is appropriate for dogs 8 weeks and older within the weight specified on the packaging (for this treatment, 23-44 lbs)

Does this help repel mosquitoes?
Answer by ChewyMar 23, 2021
This treatment does not repel mosquitos.

Is this Vet Recommended?
Answer by ChewyMar 14, 2021
This Flea and Tick Treatment does not require an approval from a veterinarian.

Will this product keep flies from biting their ears
Answer by ChewyAug 02, 2021
This treatment is designed to be effective against fleas that cause flea allergy dermatitis as well as Brown dog ticks, American dog ticks, Lone Star ticks and Deer ticks that may carry Lyme disease.

ReviewsWrite a Review

Rated 3.925 out of 5 stars
120 Ratings
Would recommend to a friend

120 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 MsMomKy3 on Sep 21, 2023
Received Free Product

Great Product

I wanted to try a new flea treatment on my dogs so I picked up the Onguard Plus for Dogs. It seems to be working well. I haven’t noticed any fleas and very little scratching. I’ve also haven’t seen any ticks. That’s awesome because fleas and ticks are horrible. I hate them. I hate seeing my dogs being drive crazy by fleas. So far so good. They got for walks outside at least four times daily so they are exposed to these pets. So I’m so glad this treatment seems to be working because when my dogs are happy then I’m happy. I definitely suggest you give the Onguard flea treatment a chance, it may be just what your doggo needs.

Rated 2 out of 5 stars
By Shopaholic on Sep 22, 2023
Received Free Product

Not effective

I was hoping this flea treatment would be effective in providing some relief for my beagle but there wasn’t any change that it was working. Every year towards the end of summer, my poor beagle is plagued with fleas. He constantly itches, bites, whines and it’s heartbreaking to see. His skin gets so red at certain areas and I was hoping this treatment would work. The treatment is easy to apply. We placed it on his shoulders as recommended. He didn’t suffer any after effects at all. His fur seemed a bit greasy in that spot but quickly went away. It’s recommended to use one dose every month. I’ll finish out the rest but probably won’t purchase again.

Rated 4 out of 5 stars
By icyblue357 on Sep 29, 2023
Received Free Product

Keeps Fleas at Bay

I chose the "Onguard Plus Flea & Tick Spot Treatment for Dogs, 23-44 lbs" as my pup is at 25lbs. She loves the outdoors but is kept in the house. My yard has a lot of fleas this year and she would come and she was constantly chewing and whining as fleas were eating her up. The " Onguard Plus Flea & Tick Spot Treatment for Dogs, 23-44 lbs" Took a minute but started tackling the fleas, by the second dose I would say she was flealess. She comes in and could sleep without interruption of fleas biting her. I will be using the " Onguard Plus Flea & Tick Spot Treatment for Dogs, 23-44 lbs" from now on as it is just as good as any vet treatment.

Rated 5 out of 5 stars
By Ash24 on Sep 22, 2023
Received Free Product

Healthy pets!

This is an essential if you have a dog.The Onguard Plus - Onguard Plus Flea & Tick Spot Treatment for Dogs, 23-44 lbs is super easy to use and protects your dog from fleas and ticks at any stage. It also kills lice and mange mites. This is super important because things like lice, mites, fleas and ticks can cause serious health issues to your pet such as Lymes disease, dermatitis, hair loss amongst a ton of other issues. When your pet starts to constantly lick their paws or other parts of its body it could be because of something like this and that’s why it’s very important to get it treated, and onguard is the perfect solution. It will kill the larvae at any stage in its life, and save you a lot of money from going to the vet. It’s super easy to use you just place one applicator on your dog in between the shoulder blades and continue. Your dog must stay dry, and the application must dry first so I suggested putting it on your furry buddy and then take them for a walk so they don’t have time to try and rub it off, or maybe doing it right before their meal .. just something to distract them so the application has time to dry. After that the medicine takes effects. This is essential, especially this time of year, it’s so simple to use and will keep your pet protected and healthy! Must have.

Rated 5 out of 5 stars
By Rm35 on Sep 22, 2023
Received Free Product

Gentle flea and tick control

My olde English has very sensitivity bro flea and tick treatments and topical solution have worked with him best. Since using Ongaurd plus brand I have seen great results for flea control when he's going outside for potty breaks. I have noticed that he has less skin itch and this product has protected him from flea infestation. My dog is currently 38 lbs and this product is currently working amazing with him. I look forward to using more brands by Ongaurd plus.

Rated 5 out of 5 stars
By omaha on Sep 22, 2023
Received Free Product

Game Changer!

Onguard Plus Flea & Tick Spot Treatment for Dogs, designed for dogs weighing between 23-44 lbs, is nothing short of a lifesaver for pet owners. This spot-on treatment is a game-changer in the battle against fleas and ticks. Not only does it swiftly and effectively rid your furry friend of these troublesome pests, but it also provides lasting protection, giving both you and your dog peace of mind. What sets Onguard Plus apart is its water-resistant formula, ensuring it stays effective even after baths or outdoor adventures. With easy application and a proven track record of safeguarding your pet's health, Onguard Plus is a reliable and highly recommended solution for a flea- and tick-free canine companion.

Rated 5 out of 5 stars
By Nartypit on Sep 20, 2023
Received Free Product

Fleas gone in no time!

I’m not sure where I went wrong. My dog is a house dog so he gets a bath every 1 to 2 weeks regularly because the last thing I want is fleas running around the house. So I make sure he gets a deep cleaning with in my opinion the best of the best dog shampoo, but somehow I have nowhere he’s stretching because of fleas so I get this stuff for him, and I am very impressed with him in a matter of weeks, the fleas are gone, I definitely would recommend the stuff and it’s very easy to apply with no side effects

Rated 5 out of 5 stars
By Lm124906 on Sep 18, 2023
Received Free Product

Easy to use

I love that this flea and tick treatment comes in a 3 pack supply. This way I don't have to worry about remembering to get more every month and have it on hand. The applicators are very easy to open. The tops tear off with no need for scissors. The nozzle is very small which is great so tge liquid comes out slow and in small spots and doesn't just gush out everywhere. It is waterproof so I can still give the dogs baths with it on too. I used it last week for my dogs monthly treatment and haven't seen any flea or ticks.

Rated 5 out of 5 stars
By LorielNJ on Sep 18, 2023
Received Free Product

He gets the job done

I'm so glad that I have his flea and tick medicine. It really does get the job done effectively. Now because we use flea and tick medicine often we never have an occurrence of fleas or ticks on them my dog however what I do love about this is that it's not greasy and that it doesn't leave a white residue like other medication that I have used in the past. I definitely will be getting this as he has not been itching he doesn't have any hotspots after using it and it effectively does what it's supposed to do.

Rated 4 out of 5 stars
By Connieh on Sep 22, 2023
Received Free Product

Flea Treatment for Dogs

Onguard Plus Flea and Tick Treatment for Dogs 23-44 lbs is a product that I received free in exchange for an honest review. My Gizmo, was the dog I used it on, very fluffy dog that could easily have fleas get on him when he goes out to potty, he is very close to the ground and always seems to pick any raised grass area to take a leak on. Vet verified that Onguard worked exactly the way it is supposed to-he has NO fleas or ticks!