Onguard Plus Flea & Tick Spot Treatment for Dogs, 5-22 lbs, 6 Doses (6-mos. supply)

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About This Item

Details

  • 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.
  • 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.

Onguard Plus Flea & Tick Treatment for Dogs offers an effective and convenient way to keep your pup protected from pests. This fast-acting topical treatment kills all life stages of fleas and ticks on dogs at least eight weeks old and ranging from 5 to 22 pounds, and helps control infestations of chewing lice and sarcoptic mange mites. Onguard Plus helps break the flea life cycle and rids your pet of fleas that can cause flea allergy dermatitis. Not only does it wipe out adult fleas, but it keeps new eggs from hatching. When used as directed, this powerful formula keeps killing brown dog ticks, American dog ticks, lone star ticks and deer ticks that may carry Lyme disease for up to a month. Application is easy—just squeeze this spot treatment onto your pup’s skin between the shoulder blades with the easy-to-use, redesigned applicator. Onguard Plus is long-lasting and waterproof, so it still offers protection even after a bath or if your pup gets caught in the rain. Onguard Plus is manufactured in the U.S. with U.S. and imported components to bring you the top-quality product and top-notch flea and tick control that you expect for your pets.

Specifications
Item Number222827
Weight1.76 ounces
Dimensions5.75 x 1.25 x 4.38 inches
UsagePrevention
Repels or PreventsFleas, Ticks, Chewing Lice, Flea Eggs, Flea Larvae
Kills or TreatsFleas, Ticks, Chewing Lice, Flea Eggs, Flea Larvae
Protection FeaturesFast-Acting, Waterproof
LifestageAll Lifestages, Adult
Breed SizeExtra Small Breeds, Small Breeds
Product FormSolution
Health ConditionFleas, Ticks
Precautions

Do not use on cats. Keep out of reach of children. Use only on dogs and puppies weighing from 5-lbs up to 22 lbs. and 8 weeks or older. It is a violation of Federal Law to use this product in a manner inconsistent with its labeling. Do not allow children to apply product. To prevent harm to you and your dog, read the entire label and package insert before each use. Follow all directions and precautionary statements carefully. Use on dogs only. Do not use on cats, rabbits or other animals. Onguard Plus is not manufactured by or distributed by Merial Limited. Frontline is a registered trademark of Merial Limited. Onguard Plus is not manufactured by or distributed by Merial Limited. Frontline is a registered trademark of Merial Limited.

Disclaimers
Important Information

Fleas rise to the top of your dog's coat as they die, so consider it a triumph if you start seeing more fleas at first, after treating your pet.

Onguard Plus works to eliminate fleas in all life stages. If you’re still seeing fleas after application, it may be because your dog has picked up new fleas from the environment, which may include other pets, surfaces and outdoor areas. Don’t worry, Onguard Plus starts working immediately on any new fleas that get on your dog, eliminating them within 24 hours from contact. 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.

Ingredients

Instructions

FAQ

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Rated 4.1 out of 5 stars
873Reviews
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Ingredients
Active Ingredients: Fipronil 9.8%, (S)-Methoprene 8.8%Fipronil, (S)-methopreneActive Ingredients: Fipronil 9.8%, (S)-Methoprene 8.8%.Fipronil, (S)-methopreneActive Ingredients: Fipronil 9.80%, (S)-methoprene 8.80%.
Kills or Treats
Chewing Lice, Flea Eggs, Flea Larvae, Fleas, TicksFlea Eggs, Flea Larvae, Fleas, TicksChewing Lice, Flea Eggs, Flea Larvae, Fleas, TicksFlea Eggs, Flea Larvae, Fleas, TicksFlea Eggs, Flea Larvae, Fleas, Ticks
Breed Size

Questions & Answers

18 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.

is this a prescription ?

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

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.

4.1
Rated 4.1 out of 5 stars
873 Ratings
Customer Photos

Customers Mention

Chewy identifies key considerations with the help of artificial intelligence and our veterinarians.

Ease of Use

76% Positive

Effectiveness

74% Positive

Ingredients

76% Positive

Long-Term Benefits

77% Positive

439 Customer Reviews



Always consult a veterinarian about your pet’s health needs. Customer reviews should not be used as medical advice.

Rated 1 out of 5 stars
By Antoinette on Apr 20, 2025

cover in fleas with days after application

The vet changed the dog to heart worm injection and told us to get OTC flea meds. We decided to try this. Does not work. He had no fleas. We started this and he was covered within a week. Constantly scratching until he was raw. Flea combed him and he had over dozen fleas of various stages on him. He is a small indoor dog that only goes out to the bathroom.


Rated 1 out of 5 stars
By Angela on May 18, 2025

Price

This did not work, my dog still had fleas, trying something else. I feel like years ago it used to work, I'm not sure but maybe the formula changed.


Rated 1 out of 5 stars
By Jake on Mar 13, 2025

Does not work, dog covered in fleas 2 days after application

This does not at all work on my 22lb Beagle. I applied it exactly as intended in the instructions and it has been ineffective. Very disappointed in this product and I won’t be using the remaining monthly doses.


Rated 2 out of 5 stars
By Merilee on May 28, 2025

not working

he is scratching so, I'm going back to top spot made by frontline. I know it works


Rated 5 out of 5 stars
By Diana on May 30, 2025

Fast delivery

I went on the chewy site. I chose what I wanted and off to the cart. Thank you!


Rated 1 out of 5 stars
By Jessica on Mar 27, 2025

The it’s not working

I have used this product before with a large dog (45-88 pounds) and it works, but we are trying it with our puppy and it doesn’t work


Rated 4 out of 5 stars
By Ernestine on May 16, 2025

like

I forgot to get them this last time, I am almost positive that they work


Rated 5 out of 5 stars
By Anita on Feb 10, 2025

Easy to apply

I have been using OnGuard for many years on several dogs. I live in a wooded area in the Ozarks. Never a problem with fleas and any ticks I find attached are dead.


Rated 5 out of 5 stars
By Liz on Mar 31, 2025

Flea and tick prevention

Easy to use, coordinates with the heart worm product that does not. Just started using it. Liz


Rated 5 out of 5 stars
By Megan on Dec 4, 2024

Works great!

We have 2 dogs and 2 cats one indoor cat and one outdoor and the fleas were starting to get bad we got this for all of our animals and it works great! I will say we didn’t see a huge difference until the second month so I do think it will get better after the first dose and definitely works better the second dose we will definitely be using this for now on!