K9 Advantix II Medium Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention | Dogs 11-20 lbs. | 2-Mo Supply
$35.68
Price: $35.68
(as of Apr 03, 2025 14:10:25 UTC – Details)
K9 Advantix II Medium Dog is the veterinarian-recommended formula that helps defend your dog against five pests: fleas, ticks, mosquitoes, biting flies and lice. And unlike other treatments, K9 Advantix II kills and repels fleas, ticks and mosquitoes. K9 Advantix II topical treatment gets straight to work killing fleas on dogs within 12 hours of initial application. This formula stops existing flea infestations and prevents new ones by killing adult fleas on contact so they can’t lay eggs and they don’t have to bite your dog to die. Fleas, ticks, mosquitoes and other pests not only cause discomfort; they may also transmit disease. Monthly use of K9 Advantix II is important to protect your dog against fleas that may cause transmission of tapeworms. This formula also kills fleas which may cause Flea Allergy Dermatitis and flea bite anemia. That’s why K9 Advantix II Medium Dog topical, spot-on formula makes application simple – going on in seconds. It’s easier than a flea collar and there are no hard-to-swallow pills. You’ll also love that K9 Advantix II is fragrance-free and waterproof after 24 hours of application. Check the product label for information on application and potential side effects. K9 Advantix II pest protection is effective on both indoor and outdoor dogs. Your dog should be at least 7 weeks old and weigh 11-20 lbs. to use K9 Advantix II Medium Dog. For the ultimate convenience in care, K9 Advantix II is available over the counter – no prescription needed. And, you can stock up with 2-dose, 4-dose and 6-dose packs so you never miss a monthly treatment. Once K9 Advantix II is applied, your dog is ready to get right back to big-pup cuddles and racing around the park. K9 Advantix II Medium Dog is a trademark of Elanco or its affiliates.
Is Discontinued By Manufacturer : No
Product Dimensions : 1 x 4.38 x 4.75 inches; 0.32 ounces
Item model number : 86314991
Department : Flea & Tick
Date First Available : January 26, 2014
Manufacturer : Elanco US Inc
ASIN : B00I2266Y2
Country of Origin : Germany
K9 Advantix II Medium Dog 30-day treatment & prevention protects dogs 11-20 lbs. from fleas, ticks, mosquitoes, biting flies and lice
Kills fleas within 12 hours of application
Vet-recommended formula kills & repels on contact so fleas don’t have to bite your dog to die
Easy-to-apply topical treatment is fragrance-free and waterproof after 24 hours
No prescription needed
10 reviews for K9 Advantix II Medium Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention | Dogs 11-20 lbs. | 2-Mo Supply
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$35.68
Dakota Ray Ison –
Worked well
Absolutely thrilled with this purchase! The product exceeded my expectations in every wayâgreat quality, well-made, and performs exactly as described. Shipping was fast, and the packaging ensured everything arrived in perfect condition. I appreciate the attention to detail and thought put into this. Would definitely recommend to anyone looking for something reliable and worth every penny. Iâm beyond satisfied and would definitely buy again.
Carol –
It works!!!
I applied the med to my dogs and they stopped scratching. Pleased with the results of the meds.
Natasha. –
Easy to use.
Kills and prevents ticks and fleas. And it is easy to use.
amberly –
Wish it lasted the whole month
Four stars because it only works two weeks for us instead of a whole month.
akaSaraNoH –
works as expected
Works as expected
GoofyPops –
Excellent Flea product for our dog
We have been using K9 Advantix for years for our Bichon Frise (based on Vet recommendation) and have had no issues. We are in the South and use the product all year round and have had no issues.
rlbuzz –
She said towatch closely and let her know if the symptoms did …
I felt it was my responsibility to inform pet owners of possible side effects associated with Bayer Advantix II. I purchased this to use on my always healthy and energetic 7 yr. old Lhasa Apso. Approximately 2 hours after application he started showing signs of lethargy and in general refusing to walk. When he did walk he only took one or two steps and then immediately sat down and started scratching or biting his tail and/or the application points. He had never displayed these symptoms before and has always been extremely active, running, barking and doing his guard dog thing.I took him to the vet the next morning. She couldn’t find anything specific and said that although it would be unlikely, it could be a reaction to the Advantix since it had been applied only hours before symptoms appeared. She said to watch closely and let her know if the symptoms did not go away.In the meantime I called Bayer’s pet health line. The person I spoke to immediately recognized the symptoms and said that it was because of an adverse reaction by my dog to the permethrin used in Advantix, used to repels mosquitoes. It leads to something called paraesthesia which was described as a tingling or pricking (pins and needles) caused chiefly by pressure on or damage to peripheral nerves. Since the Bayer representative knew immediately the symptoms, it sounded like this is a somewhat common problem. I was told that the condition is only temporary and should go away in 24-72 hrs. She said that the pins and needles effect was so irritation that the dogs typically will not walk to prevent this pain or irritation.I was told that the best treatment was to remove the Advantix by giving the dog a bath with Dawn dish detergent. I was told that I could also apply some Vitamin E oil to the application points to relieve irritation.It has now been approximately 36 hrs since the bath with Dawn to remove the Advantix and my dog is still not back to normal. He seems to feel alright and will eat and drink, but he refuses to walk more than a few steps at a time without scratching and then just sitting down. I have had to carry him around so as not to aggravate the situation. Normally he is very active and runs constantly. We have also had to cancel our daily walks of 2 to 3 miles a day. I am closely monitoring his condition and if it doesn’t improve by the 72 hr deadline given by Bayer, I’m going to have to take him back to the vet for further treatment. I also gave him a second bath with Dawn just in case I missed some of the Advantix the first time.I realize that there are possible side effects with any product or medication, however since the Bayer representative immediately knew exactly what I was talking about when I described my dogs symptoms, I feel that this problem is possibly more widespread than reported. I know many people use and swear by K9 Advantix II but after what I have seen I definitely do not recommend it. There are also other flea medications that contain permethrin and I would also advise against them also. I have always used Frontline in the past and have had no problems with it. Frontline does not contain permethrin.
Shauna Cartwright –
EDIT! MONTH 3!
I bought this for my furbaby because I read the labels and did research and everything I found said it really worked but was very strong. Then, I read the 1 star reviews.I panicked and tried to cancel the order but it was too late because I got it same day. So I just researched more about the offending chemical and when I got the order and attempted to use the topical on my dog, but I couldnt get anything out. Call me silly, but I didn’t know you had to cut the applicator to open it. Also it was such a small amount, very unexpected.From what I understand, my conclusion is that most of the accounts of sick dogs comes from the dog being able to lick the formula. The neurology problems, chemical burns and tremors, most of this, I assumed, was because the dog ingested it. Chemical burns from putting too much in one spot.Also, I have a pug and her fleas already drive her crazy so the restlessness wasn’t new for me. However she did become a lot more vocal. I have these wipes for her that are soothing, and it instantly relieves itchiness. I looked at the places she was itching and use the wipes to sooth the skin.Last night she did scare me a little bit, because I know my dogs eyes and behavior and her eyes were absolutely what you would call “whale eyes” and it looks crazy, and she has the grimace that looks like a smile but its not, like her mouth barely open and she panted for awhile. I just gave her some love and helped her calm down enough to go to sleep.Anyway, we are now on day 2. I havent seen too many fleas come off her yet, but her itchiness has improved, which is shocking to me because I dont see any of the fleas on her bed or floor. The scariest effect so far, has been her whale eyes, and I think its because she’s so incredibly itchy and restless. I will update this as we progress. But so far, so good, knock on wood!Edit; month 3 just passed of using this and it really is working very well. By the time itâs time for the next one, you can sometimes tell because youâll see some fleas on her when she comes back from outside. Other than that, no complaints here!The first day she has it applied, she can get a bit moody with an attitude. But nothing ever severely wrong with her after taking it, other than a little bit itchy.** TRY TO PUT THE SOLUTION ON THE SPINE OF THE BACK WITH THE DOG STILL. THIS WILL MAKE IT IMPOSSIBLE FOR THEM TO LICK IT OFF AND MAKE THEMSELVES SICK! My very sensitive pug has been quite satisfied with this product.
Sweetie_04 –
En la caja vienen 6 pipetas, como se indica en la descripción: 4 de ellas vienen en el sobre hermético de la propia caja y las otras 2 vienen sueltas (la caja realmente es de 4).Contenta con la calidad de Advantix, no me arriesgo a probar con otra marca.Muy recomendado por la relación calidad-precio.
Amazon Customer –
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