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Advecta

Advecta Ultra Flea and Tick Topical for Dogs 21-55 lbs, 4-Mo Supply

  • Based on 10,629 reviews
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  • – 4-month term
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Availability: Only 5 left in stock, order soon!
Fulfilled by Amazon
Arrives Oct 26 – Oct 27
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Pattern Name: Large Dogs


Size: 4 Dose


Features

  • Same Active Ingredients as K9 Advantix II Advecta Ultra contains imidacloprid, permethrin & pyriproxyfen, delivering proven multi-pest protection without the premium price
  • Kills & Repels 5 Pest Types Eliminates and repels fleas, ticks, mosquitoes, biting flies, and chewing lice; fleas die on contact without biting your dog
  • Breaks the Flea Life Cycle Kills flea adults, eggs, and larvae to stop reinfestation; one monthly application protects for 30 full days
  • Waterproof & Fragrance-Free Formula remains effective even if your dog gets wet (24 hrs post-application); no scent to irritate sensitive pets
  • Large Dog Formula Dosed for 21-55 lbs, 8 weeks and older; 4-month supply for continuous multi-pest protection

Description

ADVECTA Ultra Flea and Tick Protection for Large Dogs (21-55 lbs) contains the same active ingredients as K9 Advantix II for Dogs. This waterproof, fast- acting flea topical for dogs kills and repels fleas, tick, and mosquitoes. Advecta dog tick and flea treatment breaks the flea life cycle by killing flea eggs, flea larvae, and chewing lice for up to 30 days. This topical is great to use during flea season when pet owners spend the most time at the dog park and on outdoor adventures. As an alternative to oral flea pills, use this topical alongside a flea comb on fur to keep pets flea-free. ADVECTA Ultra for Dogs is not manufactured or distributed by Bayer Healthcare LLC, the makers of K9 Advantix II. K9 Advantix II is a registered trademark of Bayer Healthcare LLC.

Brand: Advecta


Item Form: Drops


Scent: Unscented


Active Ingredients: Imidacloprid,Permethrin, Pyriproxyfen


Allergen Information: Apple Free


Dog Breed Size: Large


Unit Count: 4 Count


Color: Purple


Age Range (Description): All Life Stages


UPC:


Product Dimensions ‏ : ‎ 2.5 x 5.25 x 5.75 inches; 0.63 ounces


Item model number ‏ : ‎


Date First Available ‏ : ‎ March 25, 2018


Manufacturer ‏ : ‎ PetIQ


Best Sellers Rank: #967 in Pet Supplies (See Top 100 in Pet Supplies) #9 in Dog Flea Drops


#9 in Dog Flea Drops:


Customer Reviews: 4.2 4.2 out of 5 stars (10,629)


Brand Name: Advecta


Unit Count: 4 Count


Age Range Description: All Life Stages


UPC: 631907759182 818145016837


Included Components: Flea and Tick Topical Treatment for dogs


Item Type Name: Flea and Tick Topical Treatment


Manufacturer: PetIQ


Model Number:


Manufacturer Part Number:


Item Form: Drops


Scent Name: Unscented


Dog Breed Size: Large


Target Species: Dog


Allergen Information: Apple Free


Active Ingredients: Imidacloprid,Permethrin, Pyriproxyfen


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Oct 26 – Oct 27

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

🚀 Abunda's Overview

This is our summary and key points to consider based on customer reviews.

The product reviews suggest a generally positive consensus among pet owners about this value-priced flea and tick treatment. Users have reported a successful elimination of fleas and ticks, with results comparable to more expensive brands, and without any reported adverse reactions from their dogs. Notably, the product is easy to use and has no reported bad odor.

Pros

  • 🐾 Affordable alternative to name brands
  • 🐾 Successful elimination of fleas and ticks
  • 🐾 Easy to apply with no unpleasant odor

Cons

  • 🚫 Some users require longer test period for efficacy

Should I Buy It?

Based on the predominantly positive reviews, this product seems to provide effective flea and tick control for dogs at an affordable price. It is a viable option, especially for those seeking to replace more expensive brands without a compromise on desired results. As always, monitor your pet closely when introducing a new product.

    • Great for a 2nd line of defense.
Pattern Name: XL Dogs 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 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 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 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
    • terrible. & now I have to wait to treat my new rescue puppy with something that actually works
Pattern Name: Large Dogs Size: 4 Dose
terrible product. did not kill or repell anything. two doses two weeks apart & now both of my dogs have fleas. it's caused significantly more itching than was occuring when we brought him home. now that he's had two doses in two weeks - we cannot treat him again for at least a month or risk terrible skin irritation. so our only recourse to make our dogs comfortable is regular dawn baths which is also not good for their skin either. we have treated the house. bedding. ozone generator. bomb. spray. loads of laundry and bedding washed & left in the sun to dry for 48 hours...the whole 9 yards. i understand it is a process to rid the whole life cycle & i have had to do so in the past with my first rescue, so, ive had experience with this nightmare before... but this just did nothing at all. arguably make my new little rescue pup more irritated. :( if I could rate this 0 stars, I would. you know what they say about you get what you pay for. as such is true here. don't make the same mistake I did & purchase this treatment because it's a great price... I now have two poor dogs who are very uncomfortable & it's my fault. please just pay for the good name brand stuff that's tried & true …. this isn't it. heed my caution or not but your fluff may pay the consequences... if it works for your dog then I am super happy for you that you get to save a few dollars lol but for me - not one BUT TWO dogs had absolutely zero effect or the results as they're advertised for this product. .. this is just my own experience with this product - yours may be different, but unfortunately nothing good came from this product for us. & as for other negative reviews - please if you are planning to leave one - make sure youve followed all steps required to address a flea infestation before negatively reviewing this product. ... show more
Reviewed in the United States on September 3, 2026 by shecanic
    • Extremely effective
Pattern Name: XL Dogs Size: 6 Dose
My two small dogs were literally eat up with fleas. Everything i tried just seemed to work mediocre at best, almost helped slightly more than a day or so at worst. Put this on my dogs at about midnight and by the next morning they had both stopped biting and scratching on themselves completely. Next to i need it i will subscribe to regular shipments. ... show more
Reviewed in the United States on September 9, 2026 by melinda morgan
    • Good
Pattern Name: Medium Dogs Size: 2 Dose
Good for a quick flea dosage, if you dont have any. Arrived quickly
Reviewed in the United States on September 13, 2026 by Kyla Ritchison
    • Happy dog happy home
Pattern Name: Small Dogs 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

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