Onguard Plus Flea & Tick Spot Treatment for Dogs, 5-22 lbs

By Onguard Plus
Rated 3.4956 out of 5 stars

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$35.03Chewy Price
$33.28Autoship Price
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This Item – Onguard Plus Flea & Tick Spot Treatment for Dogs, 5-22 lbs, 6 Doses (6-mos. supply)
Rated 3.4956 out of 5 stars
$35.03Chewy Price

Buy Onguard & Chewy gives One to a Shelter in Need

Capstar Flea Oral Treatment for Dogs, 2-25 lbs, 6 Tablets
Rated 3.9182 out of 5 stars
$34.99Chewy Price

Save 25% on First Autoship

Total Price: $78.45

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 5 to 22 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.
  • Manufactured in the USA for the quality and effectiveness you can trust.

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Play Video: Learn More About Onguard Plus From Our Team of Experts
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)-methopreneActive Ingredients: Fipronil 9.8%, (S)-Methoprene 8.8%.Active Ingredients : Fipronil 9.8% , (S)-methoprene 8.8%.
LifestageAdultPuppy, Adult, SeniorPuppy, AdultAdultPuppy, Adult, Senior
Breed SizeExtra Small Breeds, Small BreedsExtra Small Breeds, Small BreedsExtra Small Breeds, Small BreedsSmall Breeds, Medium BreedsSmall Breeds, Medium Breeds

Questions & Answers

19 Customer Questions

Who is the manufacturer for this brand? It is my first time hearing of Onguard. Is it a Chewy house brand?
Answer by ChewyNov 17, 2020
Onguard Plus is exclusively made for and distributed by Chewy! We work closely with production partners to create and develop our own recipes and oversee production to ensure it adheres to our quality standards. Onguard Plus is manufactured in the United States.

Can I use this on my 3 1/2 lb Yorkie? Or is there something else you would recommend?
Answer by ChewyAug 22, 2021
The minimum safe weight is 5 pounds. Since this is a medication and it is dosed by the weight of the pet, it is very important to be at that specific weight.

Can I give my dog a bath after using this?
Answer by ChewyNov 03, 2020
Your dog needs to be dry at the time of application and remain dry for 24 hours after application.

is this a prescription ?
Answer by ChewyJun 16, 2021
This does not require a prescription.

ReviewsWrite a Review

Rated 3.4956 out of 5 stars
228 Ratings
Would recommend to a friend

227 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 sjrpsulion on Sep 17, 2023
Received Free Product

Onguard Plus Flea & Tick Spot Treatment for Dogs,

I have a 12-year-old, 20-pound Bichon Fries that constantly gets flea and tick attacks. I applied the Onguard Plus treatment and within five days my dog was free of any attacks from fleas and ticks. I was so impressed by the quality and performance of this product. Since the application of Onguard, and being in the recent wave of hot temperatures in Southern California, the product has been delivered as designed. I have had no instances of fleas and ticks attacking my dog. Its effectiveness has reduced the requirement for frequent baths to ward off fleas/ticks. This is an outstanding product to address flea and tick issues without using harsh ingredients. I am very pleased with the performance of this Onguard Plus product and give it a 5-star Rating.

Rated 4 out of 5 stars
By Jenn on Sep 24, 2023
Received Free Product

Flea & Tick

This spot treatment is basically a 2in1, it not only treats fleas but ticks too. It helps break the life cycle and rids your dog of flea eggs, larvae, pupae and adults. It also kills tick larvae, nymphs and adults. Easy to apply, waterproof and long lasting. We've only used it a week or so but I haven't seen any fleas or ticks on her. Baby is only 4-5lbs so I choose the 5-22lb treatment. Make sure you check the dog size on package before purchasing yours it does matter.

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

Works Great

Onguard Plus Flea & Tick Spot Treatment for Dogs, designed for dogs weighing between 5-22 lbs, is a highly effective solution for keeping these pesky pests at bay. As a dog owner, I've found Onguard Plus to be a reliable and convenient spot treatment that provides peace of mind and comfort for both my furry friend and me. The easy application process ensures that my dog is protected from fleas and ticks, preventing potential infestations and the discomfort they bring. I appreciate the long-lasting effects, knowing my dog can enjoy outdoor adventures without the worry of these unwanted intruders. Onguard Plus has become an essential part of our routine, ensuring a happy and itch-free experience for my beloved canine companion.

Rated 5 out of 5 stars
By Wannyj on Sep 26, 2023
Received Free Product

Easy to apply and works fast.

I keep flea collars on both of my miniature dachshunds, but when I visit my mom I need to add more protection because she has an ongoing problem with fleas in her yard. After applying this to my little dog, it started killing fleas within about 30 minutes. I saw a few that were drunkenly crawling around and it was easy to squish them and get rid of them. I am impressed at how fast this product started working and love that I can still bathe my little dogs after this has been applied and they will still be protected.

Rated 5 out of 5 stars
By Acole on Sep 28, 2023
Received Free Product

No fleas!

This is a multi use pack which I really like because it means I don't have to keep going and getting new flea treatments. We live right by a creek bed so I am worried my dog will also be exposed to ticks also and so far I haven't seen any on my dog. This is very easy to apply and it didn't bother her in any way. I haven't noticed any fleas either which is amazing! I didn't notice any smell and her coat didn't stay greasy feeling like other ones I have tried in the past.

Rated 5 out of 5 stars
By chuckminnie on Sep 23, 2023
Received Free Product

Works great

Onguard PLus flea and tick treatment seems to be working great. This is a very active flea season in Ohio with the seasons changing and fleas are a problem this time of year. I treated my dog about two weeks ago and so far, nothing. My dog isn't scratching or showing any signs that she picked up a flea. that's what I was hoping this product woud do and I'm not disappointed. Onguard contains Fipronil, which is flea treatment ingredient that's in other national brands.

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

Worked Great!

Since its summer time my dog tends to get some fleas and ticks when she goes outside. She is a small dog and sometimes its hard to find a product that will work on her and not be too much medication for her. I used this spot treatment on her when I saw a few fleas and within a day I did not see anymore fleas on her. It was easy to apply and she really did not even notice when I put it on her. Its been a month and she still does not have any fleas for ticks and the treatments never bothered her skin either.

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

Works Fast

I really love this new Onguard Plus - Onguard Plus Flea & Tick Spot Treatment. I applied it to my dogs neck near her shoulder blades. It goes on easily and has no scent at all. It quickly started slowing the fleas down until eventually dying. My dog has sensitive skin and this did not bother her at all. I highly recommend this product if you are searching for a great value product that works fast.

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


The Onguard Plus Flea and Tick Treatment effectively eliminated fleas on my two dogs, I haven’t noticed any digging or saw any fleas or eggs anymore anywhere! The application is simple, just squeeze tube and completely empty the tube onto skin in between parted hair. Once monthly is great that I don’t have to use anything else at all!

Rated 5 out of 5 stars
By Neeni on Sep 18, 2023