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Advecta Ultra Flea and Tick Topical for Dogs 55+ lbs, 4-Mo Supply

Based on 10,496 reviews
Condition: New
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$24.98
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Availability: Only 5 left in stock, order soon!
Fulfilled by Amazon

Arrives Friday, Oct 30
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At a glance

Condition
New
Pattern
XL Dogs (Over 55 lb)
Size
4 Dose
Dimensions
1.5 x 4.25 x 4.75 in; 1.13 oz
Weight
1.13 oz
Color
No Color
Item Form
Drops
In the box
Advecta 3 Flea and Tick Topical TreatmentFlea and Tick Control for DogsX-Large over 50lbs4 Month Supply
Warranty
Advecta 3 Flea and Tick Topical Treatment, Flea and Tick Control for Dogs, X-Large over 50lbs, 4 Month Supply

Features 1

  • BREAK THE FLEA LIFE CYCLE: Effectively breaks the flea life-cycle by killing all life stages of fleas: adults, eggs and larvae

Description

Advecta Ultra for dogs is a monthly topical treatment and prevention of ticks, fleas, mosquitoes, biting flies & lice. Advecta Ultra contains the same active ingredients used in bayer K9 advantix II for dogs. Advecta Ultra provides broad protection against fleas, ticks, mosquitoes, biting flies, and chewing lice. It breaks the flea life cycle, killing all life stages of fleas, including adults, eggs, and larvae. Advecta Ultra is a convenient monthly topical for dogs that kills through contact. This means that fleas, ticks, and mosquitoes don’t have to bite your dog to die. EPA number - 91384-3.

Specs 18

Brand Advecta
Item Form Drops
Scent Unscented
Item Weight 1.13 ounces
Active Ingredients Imidacloprid,Permethrin, Pyriproxyfen
Allergen Information Crustacean Free
Unit Count 4 Count
Color No Color

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Oct 30

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Top Amazon Reviews


Great for a 2nd line of defense.
Pattern Name: XL Dogs (Over 55 lbs) Size: 4 Dose
This is identical to K9 Advantix II. This product works great for my dog, but then again my dog's skin doesn't have severe reactions to permethrin. Permethrin is extremely deadly when used incorrectly. For instance undiluted permethrin spray used on goats with direct skin contact will send a goat into nervous system failure within 2-4 minutes. They loose control over their bladder. Their back legs shutdown. The goat will continuously stretch out long and it's legs get wobbly and their steps get very uncoordinated. If the permethrin isn't removed from the goat's body with soap that has sulfates in it, in order to break down the molecule structure compounds of the permethrin, then the goat will go into seizures and die. If permethrin can do all of that to a goat, just imagine what it can do to your dog. If permethrin is used properly and dosed correctly it has proven to be very safe and effective, compared to many pesticides used on livestock and pets. Please, when testing any pesticide product on your pet, only test a small penny size area to start. Just like you don't slather your face in a new unknown facial cleanser or cream due to possible skin reactions, you don't go pouring pesticide products on your dog's skin if they have never been introduced to the product prior before. Common sense goes a long way. Personally, this product works wonders for my English Mastiff. This isn't a fix all product though. If your dog already has fleas or ticks they need removed with a few baths soaked in Dawn dish liquid original. This product will NOT remove or kill off a current infestation. I know what the product claims, but as a goat farmer who has actually worked with undiluted permethrin; which is the active ingredient in this product, there isn't nearly enough permethrin in this product to kill off a full blown tick of flea infestation. This product is a good deterrent and keeps pests from wanting to bite and start a infestation. If you apply this to your dog and get a odd reaction within the first 5 minutes, then you should react VERY quickly. Use a soap with sulfates in it, such as Dawn Dish liquid original. Use cold water also to stop the skin pours from opening up and enlarging, which would allow more of the pesticide residue into the blood stream. Scrub and wash the affected skin area, vigorously. Do not toss water on or dunk the affected area. By not scrubbing the pesticide residue away from the skin and minimizing the effect of it soaking in deeper past the dermal layer, you're only wasting precious time. Scrub, scrub, scrub. I've used permethrin for a long time as a goat farmer. Around and in my barns. In our milking area and on our milking stands. In chicken coops and duck houses. In our buck barn and around common areas in the pasture. Also use it in our basement to keep out hundreds of pests. This product is a good product, but never let your guard down. Always be looking for ticks, fleas, mites, lice, etc. Do your best to minimize exposure, period. This product is for 2nd line of defense. This product is NOT a cure all fix all, 1st line of defense kinda product. But then again neither are the real expensive Rx script chewable tablets either. Been there, done that. ... show more
Reviewed in the United States on June 11, 2025 by Mae-Lee

Advectra not working
Pattern Name: XL Dogs (Over 55 lbs) Size: 6 Dose
My 2 dogs have been battling fleas for a few mths w natural flea collars & remedies that worked temporarily. The Advectra began working in a few days & they have been flea free for 3 wks, HOWEVER, fleas have returned to their bodies. I put 3/4 of a container back on both of them as they were besides themselves. I have bombed the house twice + had pest control out. I need to switch product! ... show more
Reviewed in the United States on July 10, 2026 by Marcy

Worked as well as others
Pattern Name: Medium Dogs (11-20 lbs) Size: 4 Dose
This flea treatment works some. When applying it I found a flea between his shoulder blades, the medication was put directly on the flea, bit did not kill it. I removed the flea and killed in dish soap. His scratching has reduced, and I haven't found any more fleas, so that's a plus
Reviewed in the United States on August 20, 2026 by nc_music _lover

Work just the the expensive one
Pattern Name: XL Dogs (Over 55 lbs) Size: 6 Dose
Worked just as well as the name brand for flea control for good value. Does have a slight odor that isn't appealing, but then again it is pesticide. Package was intact with no leaking. Didn't experience and skin irritation on dogs that usually have skin allergies.
Reviewed in the United States on August 29, 2026 by DancingQueen

Happy dog happy home
Pattern Name: Small Dogs (4-10 lbs) Size: 2 Dose
So I was dumbfounded when I asked Alexa which is the very best brand of scientific medicine for my small dog she said this one here so I bought it right away and Alexa was right no please no ticks no mosquito bites. And it doesn't have a strong smile with and it's not like a whole lot of liquid it's just a couple of drops which is another thing that I like no others I've with the whole dog with the amount that they put in that bottle this one is just a little couple of drops I like that ... show more
Reviewed in the United States on August 21, 2026 by Dan

Great price and functionality
Pattern Name: XL Dogs (Over 55 lbs) Size: 4 Dose
Works so well...I'm especially happy that it repels mosquitos so well. We don't use a heartworm preventative for our dogs because of our concern for autoimmune reactions to them. We do PCR genetic testing in the fall which provides safety for our dogs without the risk of reaction to poisons.
Reviewed in the United States on August 30, 2026 by Gary VanDeven

Doesn't kill the fleas as stated.
Pattern Name: Large Dogs (21-55 lbs) Size: 4 Dose
This is a topical flea treatment. I thought it was chewables. This has not helped much. As it says it will kill the fleas. And help prevent them. It might work well combining it with other remedies but not on its own. I would recommend using other medicines/remedies if your dogs already have fleas.
Reviewed in the United States on July 11, 2026 by Tori

Mid level flea medicine
Pattern Name: XL Dogs (Over 55 lbs) Size: 6 Dose
Works ok but pets still fighting fleas
Reviewed in the United States on June 29, 2026 by Rebecca Lagerholm
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