Vectra 3D Flea & Tick Spot Treatment for Dogs, 21-55 lbs

By Vectra
Rated 3.6667 out of 5 stars

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$79.67 (-20%)Chewy Price
$99.99Chewy Price
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$75.69Autoship Price

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About This Item


  • This monthly treatment helps protect dogs ages 8 weeks and older weighing 21–55 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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Learn More About Vectra From Our Team of Experts

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 SizeMedium BreedsLarge BreedsSmall BreedsExtra Small BreedsSmall Breeds, Medium Breeds

Questions & Answers

10 Customer Questions

My dog weighs 106. Can I use 2 of the 21-55 tubes at once

Do I treat my dog with 3 doses right away, or use one dose a month?
Answer by ChewyMay 06, 2020
This flea and tick treatment should be administered once a month.

Some products that are safe for dogs are NOT safe for use around cats. I have 2 dogs and 1 cat is it safe to use on the dogs with a cat in the house?
Answer by ChewyJun 22, 2020
Due to their unique physiology and inability to metabolize the permethrin in Vectra 3D® for Dogs, this product must not be used on cats. As a precaution, when using this product in households with both dogs and cats, please keep the dog(s) that have been treated with a Vectra 3D® product separated from cats until the product has completely dried. Once dry, cats and dogs may again interact freely. Average drying time for Vectra 3D is 6-8 hours however drying times can vary. To ensure that the product is completely dry, you may run a facial tissue along the application site. When there is no evidence of moisture on the tissue, the product is dry.

After the product dries, can the dog swim? Will the protection be effective after many swims during the month,?
Answer by ChewyJun 25, 2022
Vectra 3D remains effective in controlling fleas and ticks for a full month if your pet is immersed in water through swimming or regular bathing.

ReviewsWrite a Review

Rated 3.6667 out of 5 stars
108 Ratings
Would recommend to a friend

106 Customer Reviews

Always consult a veterinarian about your pet’s health needs. Customer reviews should not be used as medical advice.
Rated 2 out of 5 stars
By Mary on Nov 13, 2023