ONGUARD PLUS Flea & Tick Spot Treatment for Cats, over 1.5 lbs, 6 Doses (6-mos. supply) -

Onguard Plus Flea & Tick Spot Treatment for Cats, over 1.5 lbs

By Onguard Plus
Rated 2.9305 out of 5 stars

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$31.97Chewy Price
$30.37Autoship Price
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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 cats at least eight weeks old and 1.5 to 22 pounds. Also helps control infestations of chewing lice.
  • Helps break the flea life cycle and rids your cat 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 cat has a bath or gets their fur wet.

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Learn More About Onguard Plus From Our Team of Experts

Questions & Answers

13 Customer Questions

does on guard have expiration date
Answer by ChewyApr 17, 2022
This treatment has no expiration date.

Does the kitten have to be both 8 weeks and over 1.5lbs?. Or one or the other? I found kittens I took them in they have fleas they’re about 7 weeks now old healthy and @1.5 to 2lbs
Answer by ChewyOct 08, 2020
Kittens must be both 8 weeks old and weigh over 1.5-pounds to use this treatment.

Can you apply an ear mite solution at the same time that you administer this tick & flea spot treatment? Or should I do them on 2 separate days?
Answer by ChewyApr 14, 2021
Please consult with your veterinarian before giving your pet multiple treatments/preventatives.

is this product quick drying
Answer by ChewyMar 31, 2021
The topical will be dispersed over your cat’s body through their natural oils and attached to the hair follicles. This process can take up to 24 hours. Do not apply more often than once every 4 weeks.

ReviewsWrite a Review

Rated 2.9305 out of 5 stars
302 Ratings
Would recommend to a friend

302 Customer Reviews

Always consult a veterinarian about your pet’s health needs. Customer reviews should not be used as medical advice.
Rated 3 out of 5 stars
By Kim on May 19, 2023

It's meh I guess

I used this on my 1 year old male cat. He is about 15-17 pounds. This product did not get rid of the fleas at all. He still has them and I'm debating on if I need to put another dose on him even though it hasn't been a month yet. This is his first time with flea medication and he seemed to tolerate it (even after licking it like a dummy). I put it right between his shoulder blades as directed. I'm still having to fleacomb him every other day and am still getting live fleas off of him. My older cat can't use any flea medication as she is allergic to it and gets severe skin reactions to it all. She also doesn't have fleas. They aren't kept separate. They are both indoor only cats. They are both brushed daily and flea combed every other day. The fleas just go after my younger cat for some reason. I've tried bathing him as well and grooming him. They keep coming back. This was my last attempt.

Rated 1 out of 5 stars
By Mouse on May 16, 2023

Hate this product

This flea medicine didn't even last a full week on my babies. Thought it was a good deal to try it out, but if I have to apply it more than 1 time a month, it's not saving, instead it's costing me a fortune.

Rated 5 out of 5 stars
By Joe on Apr 25, 2023

Works as Promised

Ours are indoor outdoor kitties so it is important that flea reduction works. This product lasts the whole month providing protection for them and us from the little biters...

Rated 1 out of 5 stars
By ann on May 20, 2023

Waste of money

Effect lasts less than a week. I tried for 2 months thinking I may have received expired product, but same results on second try.

Rated 3 out of 5 stars
By Lori on May 7, 2023

Cats still scratching

I am not sure this brand works that well my cats are itching already and they do not go outside. So I am questioning how well it really works

Rated 1 out of 5 stars
By Benji on Apr 13, 2023

horrible product

Used this as a substitute for revolution waiting till vet visit, and this is the first time my cats have gotten fleas in 4 years, absolutely did nothing. Waste of time and money!

Rated 1 out of 5 stars
By Avery on Feb 21, 2023

Caused irritation and hair loss

Three days after applying Onguard, I noticed hair loss and irritated skin on one of my cats at the application site. I've never had an issue using other topical flea meds, like Revolution. I will absolutely not be purchasing this product again.

Rated 1 out of 5 stars
By gc1074 on Apr 5, 2023

Left sores and bald spot

Tried on my cat and it left sores on her back near the tail and a bald spot. Had to apply medicine to get rid of the sores. Now need to find a different flea medicine

Rated 4 out of 5 stars
By Catlady on Apr 10, 2023

Flea control

So far this product has worked well. Not seeing any ticks on the animals treated so far. Animals are still scratching but could be from existing bites

Rated 1 out of 5 stars
By Jim on Apr 26, 2023

Doesn't Work

There's a reason it's the cheapest flea treatment on Chewy. You get what you pay for. I got a cat with fleas.