K9 Advantix 11 Large Dog For Sale (2024 Update)

This works well. It is non greasy and doesn't have a funky smell like some other topical flea meds. The problem with topical is that sometimes they stop working . Therefore you switch to the other brand . But so far I have not had to switch. It definitely works well and recommend to many people.deb.n

I am hesitant to use these types of products compulsively for preventive measures. Fortunately, We’ve not been in an area where fleas are out of control outside, as we have had problems in the past with other pets. These types of topical medicines would only be effective for a maximum of 1 1/2 to 2 weeks at best. And then our previous dog, and coincidentally our cat also, developed tumors where these types of medicines were being applied. I can’t say for certain that they were the cause. But it’s very suspicious that it happened in both animals. The dog we noticed first. And maybe a year or so later our cat. They both lived to past 11 years. And our dog was also on meds for epilepsy. Only briefly because he would spit out the meds no matter how clever I thought I was in hiding them. So, since he refused to take them, I stopped trying to make him. His grand mal seizures were frequent and long lasting. But, he just got better at spitting out the pills, even if I shoved them down his throat. i have only had to use these topicals a few times in our current dogs short life, so far. And it seemed to work fine and for as long as it said it was supposed to work. And when she or we seem a bit more itchy, I apply it again, and wait until it’s “needed”, again- as opposed to routinely scheduled once every month. And in my opinion, it works better than capstar, which is meant as a short acting topical to immediately relieve a flea problem getting out of control. But for whatever reason, this works better for us, even though it might take a few days to really notice results. (I never really noticed immediate results with. Capstar. It helped make the problem not get any worse. But it didn’t solve the problem either.)shelly.c

I bought this one day on the recommendation of the pet store clerk. What I liked is that it was easy to apply, and it work quickly and efficiently , neither of my dogs had any type of negative side effects, there was no redness or scaliness or itchiness at the point of the application, and less than 36 hours all fleas were sufficiently gone. I did do the reapplication Nearly one week early. Only because it was in the thick of flea season and my neighborhood is filled with stray/feral kitty cats.fran.c

This product is supposed to contain 2.5 ml per vial for the "large dog" size. I bought several that appeared short, so I measured the volume. The 3 vials measured (2 different packs) were closer to 2ml per vial. Therefore, there is a question about the efficacy of the volume/rate provided. I really like the active ingredient combination in the generic and the premium Bayer product, and prefer it helping prevent mosquito-vectored illnesses, in addition to fleas and ticks. However, the reduced volume is a problem–not what the EPA approved. Also, it is odd that our 32 and 42 pound dogs both qualify as "Large Dogs," but that category description conforms with the strange category of Advantix II, the name brand product.BLUF

I tried this no for 2 years. 1st year I only found one engorged tick. this year I've seen 5. engorged. after three monthly treatments. 3 I removed myself, 2 dropped on my floor. though I have not found any fleas what so ever. I'm done with this product. I'm opting for a chewable oral prevention. I read they're more effective then topical meds.Djcountry

I started purchasing Advecta 3 around April of this year. I have a Pitbull/St Bernard mix that has horrible flea allergies. I have tried every flea med on the market and Advecta is the only one he hasn't had any type of reaction to!! I'm so impressed with this product.. he had hair missing around his but and was chewing his tail and feet. Since using Advecta he has stopped all chewing and the constant scratching, he has a beautiful coat. I usually apply every 25 days because between the first application and second was 30 days and I did find a couple fleas but that's not a biggy. I just apply a few days early and no fleas and I have a happy pooch. Thank you!! I honestly didn't think I would find a product he wasn't allergic to…Bosmom2019

After several months and hundreds of $ worth of flea products, baths even shaving my golden retriever I couldn't get the fleas under control. An inside pet only going outside for short periods. Florida heat makes it hard to rid the fleas outdoors. No matter what I did he only had a couple days of relief. So I tried Advantus chews. Within 5 hours of giving my dog the 1st Advantus chews the fleas were dying! Right before my eyes! It's been 16 months and it's the only product I trust!Tami

These soft chews have worked miracles for us. Our inside dog used to constantly come in with fleas and no matter the treatment of baths, collars, dips, etc., nothing would bring her full relief. Last year we saw these on sale and decided this would be a good time to try them. We gave her one and what a difference! Within an hour she went from infested to only a few and given a couple more hours those remaining had all died too. She was completely flea free. We haven’t had an infestation since. We now use it when we see a couple on her (which is ever few weeks during the summer and every other month during the winter). We tried to get my mom to try it too, but the price can be a bit much for some. So we bought it for her instead and now even she is a convert to these amazing flea chews.Michael in Texas

I have three large dogs, pitbull who is 4 years old and 95lbs.A lab/hound/boxer mix 3yrs 50lbs and Italian mastiff/boerboel mix puppy who is 3 months old and weighs 45lbs. I’m not gonna lie I was very hesitant to buy this product I saw some people posts their dogs were having reactions but I’ve tried every flea treatment in the world and nothing works so I figured I would give it a shot and this stuff absolutely works amazing one day every single flea is gone I used a flea comb to make sure there was no fleas left I can’t find a single one. A must buy!! Also I only gave each dog 1 tablet chew and I monitored them closely after I gave the chew. All three dogs acted perfectly normal had no side effects my dogs also are not picky eaters they love the flavor of them.shelley a.

I am hesitant to use these types of products compulsively for preventive measures. Fortunately, We’ve not been in an area where fleas are out of control outside, as we have had problems in the past with other pets. These types of topical medicines would only be effective for a maximum of 1 1/2 to 2 weeks at best. And then our previous dog, and coincidentally our cat also, developed tumors where these types of medicines were being applied. I can’t say for certain that they were the cause. But it’s very suspicious that it happened in both animals. The dog we noticed first. And maybe a year or so later our cat. They both lived to past 11 years. And our dog was also on meds for epilepsy. Only briefly because he would spit out the meds no matter how clever I thought I was in hiding them. So, since he refused to take them, I stopped trying to make him. His grand mal seizures were frequent and long lasting. But, he just got better at spitting out the pills, even if I shoved them down his throat. i have only had to use these topicals a few times in our current dogs short life, so far. And it seemed to work fine and for as long as it said it was supposed to work. And when she or we seem a bit more itchy, I apply it again, and wait until it’s “needed”, again- as opposed to routinely scheduled once every month. And in my opinion, it works better than capstar, which is meant as a short acting topical to immediately relieve a flea problem getting out of control. But for whatever reason, this works better for us, even though it might take a few days to really notice results. (I never really noticed immediate results with. Capstar. It helped make the problem not get any worse. But it didn’t solve the problem either.)shelly.c

I absolutely loved this for my fur babies! What I DID NOT love was that like this past year, flea/tick season was so weird! Twice I found LIVE TICKS on me, after loving up on my baby boy, Lizard. (Male black n white cat) He is an indoor/outdoor baby, but I haven't ever had a problem like this until now. Worth mentioning, my female brindle colored cat also had irritation from this year's applications. She has to have prednisone each day, along with a topical treatment, otherwise she's in agony from inflammation and itching! I am NOT stating that it was the fault of this brand. I have no proof of that. I just wanted to make others aware that these things happened after the dosing though.pamela.g

Don't really know what changes was done to the formula . But Advantage 2 works no where near as good as it as the original formula . My cat(s) for years have always been an inside cat & used it for years with great success. I recently adopted a cat & started using Adtg.2. A week to a week & a half is about tops before you start to see your cat start scratching again. Not good especially for what they charge for the stuff. Another example of "don't fix it if it ain't broke". But I guess the all mighty dollar took care of that. Next time I take my cat to the vet I'll ask about other options. What a great flea med. it was ……………………….at one time !.Skeeter

I am hesitant to use these types of products compulsively for preventive measures. Fortunately, We’ve not been in an area where fleas are out of control outside, as we have had problems in the past with other pets. These types of topical medicines would only be effective for a maximum of 1 1/2 to 2 weeks at best. And then our previous dog, and coincidentally our cat also, developed tumors where these types of medicines were being applied. I can’t say for certain that they were the cause. But it’s very suspicious that it happened in both animals. The dog we noticed first. And maybe a year or so later our cat. They both lived to past 11 years. And our dog was also on meds for epilepsy. Only briefly because he would spit out the meds no matter how clever I thought I was in hiding them. So, since he refused to take them, I stopped trying to make him. His grand mal seizures were frequent and long lasting. But, he just got better at spitting out the pills, even if I shoved them down his throat. i have only had to use these topicals a few times in our current dogs short life, so far. And it seemed to work fine and for as long as it said it was supposed to work. And when she or we seem a bit more itchy, I apply it again, and wait until it’s “needed”, again- as opposed to routinely scheduled once every month. And in my opinion, it works better than capstar, which is meant as a short acting topical to immediately relieve a flea problem getting out of control. But for whatever reason, this works better for us, even though it might take a few days to really notice results. (I never really noticed immediate results with. Capstar. It helped make the problem not get any worse. But it didn’t solve the problem either.)shelly.c

I absolutely loved this for my fur babies! What I DID NOT love was that like this past year, flea/tick season was so weird! Twice I found LIVE TICKS on me, after loving up on my baby boy, Lizard. (Male black n white cat) He is an indoor/outdoor baby, but I haven't ever had a problem like this until now. Worth mentioning, my female brindle colored cat also had irritation from this year's applications. She has to have prednisone each day, along with a topical treatment, otherwise she's in agony from inflammation and itching! I am NOT stating that it was the fault of this brand. I have no proof of that. I just wanted to make others aware that these things happened after the dosing though.pamela.g

Don't really know what changes was done to the formula . But Advantage 2 works no where near as good as it as the original formula . My cat(s) for years have always been an inside cat & used it for years with great success. I recently adopted a cat & started using Adtg.2. A week to a week & a half is about tops before you start to see your cat start scratching again. Not good especially for what they charge for the stuff. Another example of "don't fix it if it ain't broke". But I guess the all mighty dollar took care of that. Next time I take my cat to the vet I'll ask about other options. What a great flea med. it was ……………………….at one time !.Skeeter

I was on frontline for years but when I thought I saw a couple fleas on my dogs in September 2020, I decided to make a switch to Advantage II for my cats and Advantix II for my dogs— BIGGEST mistake of my life (seriously, like over any horrible exes). I have $515.97 in receipts I submitted to the company (which was as horrible as the experience, which I will get to) and spent an additional $70 in store (in which I cannot find the receipt) since September 2020 to December. I followed every tip on the website and insert and my animals were still covered. I applied perfectly. I applied initially weekly, vacuum daily, steam cleaned, wash bedding constantly, etc. I don’t even have carpet but on the stairs and have treated the stairs and couches with Predcor. I even bought those flea traps with the sticky bottoms. I am not including any of this in that total I spent– that was all on the flea medications themselves for the 6 animals. I have saved some, not all, of the vials so on 11/13 I called Elanco. They denied my request for any type of refund. They questioned my exact dosage dates and frequency more than a doctor wants to know about your menstrual cycles but I took my best guesses, for all 6 animals although I did know what schedule they were on but didn't have it in front of me. Then they said that the product was probably not working because I bathed my dogs initially at the beginning 48 hours before application?? Their website TELLS you to bathe them before application (see 2nd screenshot posted)! I stopped bathing them after the 2nd application as it wasn't working and the dogs were miserable and only tried 2 cats (and really only 1 successfully because we all know how that goes). They then told me that I didn't give the product long enough?? Their website states (see 3rd screenshot) and is the same for Advantage II "K9 Advantix® II kills fleas within 12 hours. New fleas that jump on the dog from the surroundings, such as grass, carpet and pet bedding, are killed within 2 hours with protection against further infestation for at least 4 weeks." I tried their products, $600 worth on 6 animals, as scheduled, no missed doses for 4 months. I can’t blame it on just one animal or one batch—it didn’t work on 6, or one batch! I am very upset. Not only have I wasted money on these but I have bought corresponding products, sprays for the beddings, flea traps, etc. I FINALLY called Terminex and had to spend 12 hours clearing out under my beds, closets, getting everything off my floors, moving furniture etc. (time I will never get back) and getting my children and pets out of the house and went back to the brand that works: FRONTLINE! NO MORE FLEAS– what I should have done in the first place. I am so upset not by the fact that the product didn't work but by the way the company handled it, dodging any responsibility from blaming it on the baths they recommend to the length of time I gave it when they could have just refunded me and had someone that isn't going to not only post this review every place I bought it (not just here) but every other place that allows a review to include social media.Intelhottie

We bought Advantix liquid application anti-flea and tick treatment because it is effective, was less expensive and did not require a prescription. We had easily and successfully used liquid Advantix for years with our Plott hound mix. We now have a beagle. Beagle hair is different; it's thick, coarse, oily, kind of water proof and difficult to part in order to properly apply the liquid to the skin. Advantix is a very good product, but pet owners may want to assess their pet's coat to determine how the liquid application could be applied.Gary

My dog was getting ticks so I purchased this. I have used it in the past with great success when it had the Bayer logo on it . The one I received has the Elanco brand logo on it. I used 1 bottle and It was like I used nothing at all. Mind you I walk my dog and when he comes in the house I would find 2 or 3 live ticks walking on him. So I figured ok maybe it didnt work or I didnt wait long enough. After about 10 days of this I applied another bottle and again nothing. He still kept coming in the house with ticks every time. So I'm not sure exactly what's going on but the package I received appeared to be authentic. All serial numbers matched and packages were sealed well. Never had this happen before but definitely going back to Frontline Plus.kschoern

I am hesitant to use these types of products compulsively for preventive measures. Fortunately, We’ve not been in an area where fleas are out of control outside, as we have had problems in the past with other pets. These types of topical medicines would only be effective for a maximum of 1 1/2 to 2 weeks at best. And then our previous dog, and coincidentally our cat also, developed tumors where these types of medicines were being applied. I can’t say for certain that they were the cause. But it’s very suspicious that it happened in both animals. The dog we noticed first. And maybe a year or so later our cat. They both lived to past 11 years. And our dog was also on meds for epilepsy. Only briefly because he would spit out the meds no matter how clever I thought I was in hiding them. So, since he refused to take them, I stopped trying to make him. His grand mal seizures were frequent and long lasting. But, he just got better at spitting out the pills, even if I shoved them down his throat. i have only had to use these topicals a few times in our current dogs short life, so far. And it seemed to work fine and for as long as it said it was supposed to work. And when she or we seem a bit more itchy, I apply it again, and wait until it’s “needed”, again- as opposed to routinely scheduled once every month. And in my opinion, it works better than capstar, which is meant as a short acting topical to immediately relieve a flea problem getting out of control. But for whatever reason, this works better for us, even though it might take a few days to really notice results. (I never really noticed immediate results with. Capstar. It helped make the problem not get any worse. But it didn’t solve the problem either.)shelly.c

I absolutely loved this for my fur babies! What I DID NOT love was that like this past year, flea/tick season was so weird! Twice I found LIVE TICKS on me, after loving up on my baby boy, Lizard. (Male black n white cat) He is an indoor/outdoor baby, but I haven't ever had a problem like this until now. Worth mentioning, my female brindle colored cat also had irritation from this year's applications. She has to have prednisone each day, along with a topical treatment, otherwise she's in agony from inflammation and itching! I am NOT stating that it was the fault of this brand. I have no proof of that. I just wanted to make others aware that these things happened after the dosing though.pamela.g

I use advantage on my dogs and cats every month. In a state where fleas are inevitable because of the heat, this product has been my saving grace. When you are treating your animal for the first time it's important to read the directions. An infestation should be treated 2 weeks later, then monthly after. It's also important to treat your home and/or yard to help prevent eggs that have already been laid from hatching. Furthermore, the weight of your animal should be known to use the correct amount. Too little will not give the correct protection. Lastly, skipping monthly treatments will be vital to constant protection so it's extremely important to treat monthly. I will also add that I have 3 dogs and 9 cats that live flea free because of this product. Happy animals, happy life.Mizangel07

I was on frontline for years but when I thought I saw a couple fleas on my dogs in September 2020, I decided to make a switch to Advantage II for my cats and Advantix II for my dogs— BIGGEST mistake of my life (seriously, like over any horrible exes). I have $515.97 in receipts I submitted to the company (which was as horrible as the experience, which I will get to) and spent an additional $70 in store (in which I cannot find the receipt) since September 2020 to December. I followed every tip on the website and insert and my animals were still covered. I applied perfectly. I applied initially weekly, vacuum daily, steam cleaned, wash bedding constantly, etc. I don’t even have carpet but on the stairs and have treated the stairs and couches with Predcor. I even bought those flea traps with the sticky bottoms. I am not including any of this in that total I spent– that was all on the flea medications themselves for the 6 animals. I have saved some, not all, of the vials so on 11/13 I called Elanco. They denied my request for any type of refund. They questioned my exact dosage dates and frequency more than a doctor wants to know about your menstrual cycles but I took my best guesses, for all 6 animals although I did know what schedule they were on but didn't have it in front of me. Then they said that the product was probably not working because I bathed my dogs initially at the beginning 48 hours before application?? Their website TELLS you to bathe them before application (see 2nd screenshot posted)! I stopped bathing them after the 2nd application as it wasn't working and the dogs were miserable and only tried 2 cats (and really only 1 successfully because we all know how that goes). They then told me that I didn't give the product long enough?? Their website states (see 3rd screenshot) and is the same for Advantage II "K9 Advantix® II kills fleas within 12 hours. New fleas that jump on the dog from the surroundings, such as grass, carpet and pet bedding, are killed within 2 hours with protection against further infestation for at least 4 weeks." I tried their products, $600 worth on 6 animals, as scheduled, no missed doses for 4 months. I can’t blame it on just one animal or one batch—it didn’t work on 6, or one batch! I am very upset. Not only have I wasted money on these but I have bought corresponding products, sprays for the beddings, flea traps, etc. I FINALLY called Terminex and had to spend 12 hours clearing out under my beds, closets, getting everything off my floors, moving furniture etc. (time I will never get back) and getting my children and pets out of the house and went back to the brand that works: FRONTLINE! NO MORE FLEAS– what I should have done in the first place. I am so upset not by the fact that the product didn't work but by the way the company handled it, dodging any responsibility from blaming it on the baths they recommend to the length of time I gave it when they could have just refunded me and had someone that isn't going to not only post this review every place I bought it (not just here) but every other place that allows a review to include social media.Intelhottie

We bought Advantix liquid application anti-flea and tick treatment because it is effective, was less expensive and did not require a prescription. We had easily and successfully used liquid Advantix for years with our Plott hound mix. We now have a beagle. Beagle hair is different; it's thick, coarse, oily, kind of water proof and difficult to part in order to properly apply the liquid to the skin. Advantix is a very good product, but pet owners may want to assess their pet's coat to determine how the liquid application could be applied.Gary

My dog was getting ticks so I purchased this. I have used it in the past with great success when it had the Bayer logo on it . The one I received has the Elanco brand logo on it. I used 1 bottle and It was like I used nothing at all. Mind you I walk my dog and when he comes in the house I would find 2 or 3 live ticks walking on him. So I figured ok maybe it didnt work or I didnt wait long enough. After about 10 days of this I applied another bottle and again nothing. He still kept coming in the house with ticks every time. So I'm not sure exactly what's going on but the package I received appeared to be authentic. All serial numbers matched and packages were sealed well. Never had this happen before but definitely going back to Frontline Plus.kschoern

I really like that it keeps your pooch free if nasty fleas. K9 Advantix is reliable and easy to use. It's a once a month application and works all month. The only negative is your pooch might be too sensitive for use. You should always do a small skin test before using for first time. My pets always could use without issue but my Ala girl had allergic reaction and her hair fell out every place the medicine touched and her skin was raw. Like with anything else, everything don't work for all. For the majority this is a excellent product.alicia .w

Works great. Lasts for the month. Easy to apply. No skin issues from my pet. It doesn’t seem to bother them at all. No improvement needed. It’s a little pricey but the expectations were met. Would recommend.jennifer.k

Overall satisfaction level: good. No bad reactions from my chihuahuas. I use a syringe to dispense the correct dose for each size dog so the large size dog package is economical and lasts a good while. It seems to be fast acting but loses potency after a couple of weeks. I seem to recall other products lasting longer, maybe a whole month. Not a big issue since these inside dogs could use a bath every other week any how.bbrb972

I pour these tubes into a tiny glass vial. Then I use a needle-less syringe to draw up a cat-sized dose depending on the cat's weight. I apply it to my cats. I save a lot of money this way. Advantage 2 for dogs has exactly the same ingredients as the flea medicine for cats. (Do NOT do this with other brands of dog treatment. Always check labels first… and learn how much your own cat needs before applying it.) I've used Advantage 2 for many, many years. It has never failed my cats. They simply do not get fleas. I've never had a flea in my house. I treated my neighbor's flea-bitten dog last month. The poor creature was crawling with flea. After Advantage 2, the fleas were gone the next day. My neighbor has given up on the useless cheaper flea medications that don't work.woodsycabin

This product works great on dogs and cats, says no cats but it is the same ingredients as the dogs, have been using this for years on both. I buy the Large dog size and cut the tops off and pour in a old medicine vial then I use a 3cc syringe to suck it up. Cats I put about 1/2 a cc which is 1/2 of 1 cc . It does does not take much and use about this much on my little dogs too. Larger dogs I use about 2cc and NEVER DO THEY HAVE FLEAS and it last way longer. Advantix I use only on the dogs as this is not to be used on cats but use this when ticks are bad. Great Products to use.blonds05

Overall satisfaction level: good. No bad reactions from my chihuahuas. I use a syringe to dispense the correct dose for each size dog so the large size dog package is economical and lasts a good while. It seems to be fast acting but loses potency after a couple of weeks. I seem to recall other products lasting longer, maybe a whole month. Not a big issue since these inside dogs could use a bath every other week any how.bbrb972

I pour these tubes into a tiny glass vial. Then I use a needle-less syringe to draw up a cat-sized dose depending on the cat's weight. I apply it to my cats. I save a lot of money this way. Advantage 2 for dogs has exactly the same ingredients as the flea medicine for cats. (Do NOT do this with other brands of dog treatment. Always check labels first… and learn how much your own cat needs before applying it.) I've used Advantage 2 for many, many years. It has never failed my cats. They simply do not get fleas. I've never had a flea in my house. I treated my neighbor's flea-bitten dog last month. The poor creature was crawling with flea. After Advantage 2, the fleas were gone the next day. My neighbor has given up on the useless cheaper flea medications that don't work.woodsycabin

This product works great on dogs and cats, says no cats but it is the same ingredients as the dogs, have been using this for years on both. I buy the Large dog size and cut the tops off and pour in a old medicine vial then I use a 3cc syringe to suck it up. Cats I put about 1/2 a cc which is 1/2 of 1 cc . It does does not take much and use about this much on my little dogs too. Larger dogs I use about 2cc and NEVER DO THEY HAVE FLEAS and it last way longer. Advantix I use only on the dogs as this is not to be used on cats but use this when ticks are bad. Great Products to use.blonds05

I received the 11- 20 Lbs, ordered the 20 -55 lbs, but kept it because he is just a bit over the 20 lbs (22 lbs and trying to get him back to 19 lbs) I am disappointed with the wrong one, but was aprehensive about the larger dose, when In ordered so am not upset with the mistake. Received in the time quoted, with no problem. I so far woild recommend it, no problems here and no fleas or ticks.BETTY

I ordered and received Advantix II for medium eleven to twenty pound dogs. It works nicely for our two mini dachshunds. The package was received in good condition and in a timely manner. My vet recommends this product.Betty

It's affordable and better than similarly priced other topical products. I prefer an oral product but not all will eat it, so I use this for those animals. Lasts about 2 weeks only. Gets rid of about 80% of the fleas.randi s

Petguys has the best prices I can find on most dog items and a large selection!! Easy ordering and comes pretty fast. Thanx PetGuys!!!Tammy Y.

Kills, mosquitos along with fleas and ticks which cause heart worms and the other flea medication does not! HOO RAY!!!!!!!! FOR ADVANTIX!Leah

THE BEST. SINCE CALIFORNIA FINALLY ALLOWED FRONTLINE TOP SPOT INTO OUR MARKET, THEY DID NOT KILL TICKS. BUT ADVANTIX DOES AND ALTHOUGH MY DOG HATES IT BEING APPLIED, AS SHE DID FRONTLINE, IT DOES THE JOB. I JUST HOPE THAT I AM NOT BURNING HER SKIN. ALL MY DOGS REACTED THIS WAY EVERY TIME I DOSED THEM WITH FRONTLINE TOP SPOT OR ADVANTIX AND THIS IS 9 OR 10 DOGS. AND PETGUYS.COM ARE AWESOME AND ALWAYS HAVE BEEN!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!R N.