Vectra 3D Flea & Tick Spot Treatment for Dogs, 11-20 lbs

By Vectra
Rated 3.9846 out of 5 stars

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$89.99 Chewy Price
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$85.49Autoship Price

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About This Item


  • This monthly treatment helps protect dogs ages 8 weeks and older weighing 11–20 pounds from fleas, ticks, mosquitoes, lice, mites plus biting and sand flies—excluding mange mites.
  • Starts to reduce flea bites in five minutes and kill fleas in four hours.
  • Works to repel and kill fleas, ticks and mosquitoes–no biting required!
  • This easy-to-apply topical treatment is quick drying, fragrance free, non-greasy and waterproof after 24 hours.
  • No prescription required.

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Important Information

Fleas rise to the top of your pet's coat as they die, so consider it a triumph if you start seeing more fleas at first, after treating your pet. If you’re still seeing fleas after application, it may be because your pet has picked up new fleas from the environment, which may include other pets, surfaces and outdoor areas. 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.

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Top IngredientsDinitefuran, Pyriproxyfen, Permethrin.Dinitefuran, Pyriproxyfen, Permethrin.Dinitefuran, Pyriproxyfen, Permethrin.Dinitefuran, Pyriproxyfen, Permethrin.Active Ingredients : Fipronil 9.8% , (S)-methoprene 8.8%.
LifestagePuppy, Adult, SeniorPuppy, Adult, SeniorPuppy, Adult, SeniorPuppy, Adult, SeniorPuppy, Adult, Senior
Breed SizeSmall BreedsExtra Small BreedsMedium BreedsLarge BreedsExtra Small Breeds, Small Breeds

Questions & Answers

10 Customer Questions

How long after applying can I wash my dog
Answer by ChewyAug 12, 2022
This product remains effective when treated animals are immersed in water (e.g. swimming, bathing). Water immersion repeated weekly for one month and starting 48 hours after treatment, as well as shampooing 2 weeks after treatment do not affect the efficacy of this product. However, in case of frequent shampooing, or bathing within 48 hours after treatment, the duration of activity may be reduced.

Do i need a script from the vet for this
Answer by ChewyApr 30, 2020
This flea and tick treatment does not require a prescription from your veterinarian.

If it’s raining and I applied it at 5pm the day before is it already dried and water proof? At 6-7am the next morning?
Answer by ChewyDec 04, 2019
Yes. This waterproof solution dries quickly.

My dog used to be 20 lbs, now he’s up to 25 lbs.Both of us have gained weight during this pandemic :( Will this be effective on him? I have 4 treatments left.Can I use 2 treatments on him at once since he’s over the weight?I don’t want to waste it but will if it’s not effective or safe for him.
Answer by ChewyJul 12, 2020
This treatment is made for dogs 11-20 pounds. For dogs over 20 pounds we recommend the Vectra 3D Flea & Tick Treatment for Medium Dogs.

ReviewsWrite a Review

Rated 3.9846 out of 5 stars
65 Ratings
Would recommend to a friend

61 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