$29.99 to $69.99
K9 Advantix II Flea & Tick Control For Dogs is a once-a-month topical tick, mosquito, and flea treatment for dogs and puppies 7 weeks of age or older. Do not use on cats. Read More
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Featured Advice from Our Experts
At one time or another, most of us have watched our dogs have a bout of the sniffles or diarrhea. Many of us have wondered if we, too, were at risk of getting sick. Diseases that are passed from animals to humans are zoonotic illnesses. The most well known and most feared zoonotic disease is rabies. Read More...
K9 Advantix II
A broad spectrum protection that not only kills but repels fleas, ticks, and mosquitoes, this convenient once a once-a-month topical treatment is for dogs and puppies 7 weeks of age or older and weighing 4 lb or more. Containing Imidacloprid and Permethrin plus the insect growth regulator Pyriproxyfen, these ingredients work in unison to repel and kill parasites that can potentially carry diseases.
Features & Benefits:
- repels and kills ticks, mosquitoes and fleas for up to four weeks
- repels and kills fleas of all life stages within 12 hours
- prevents development of fleas for up to four weeks
- repels biting flies
- kills chewing lice
Note: For maximum effectiveness, you should not bathe your pet 48 hours before or after application. The oils of the skin and coat help to distribute the product properly, ensuring that the product will be effective.
View K9 Advantix II manufacturer and label information - Small Dog
View K9 Advantix II manufacturer and label information - Medium Dog
View K9 Advantix II manufacturer and label information - Large Dog
View K9 Advantix II manufacturer and label information - X-Large DogIf you find a lower price on a product, with an identical brand and model number, Jeffers will match the competitior's price!Call for details! (800)533-3377
- Brand: Bayer Animal Health
- Type: Flea & Tick
- Form: Spot-On
"Ad antic ll"
I love this product, I have been using this product on my dog since she was six months old. It really works. The people in the house behind me has a swimming pool so there was always mosquitos in my yard, they never harmed my dog. Really is a great product. I use this on my dog once a month never had an issue with it.
"Love this product "
I have used other brands in the past, but Advantix ll is the best for our fur babies! Jeffers is also amazing and professional!
I live in no Illinois. I've used this stuff for years. I've never found fleas on my dogs. I once found a tick but it was dead so all's good.
I've been using K9 Advantix II for may years now, and for all the claims this product lists hold true.
"Didn't Work in North Florida"
Fleas and Ticks are tough to eradicate in some areas more than others. I've had some products that worked in Texas, not work in Florida and some that worked in Florida, not work in Tennessee, hence this review is only meant to review its effectiveness in north Florida where it worked for a few days and then stopped working altogether. Fleas were having a party on my dogs.
This is the only thing that works where I live to keep the fleas and ticks at bay. WooHoo!
"K9 Advantix II"
Works great for fleas, better than anything else as there is no competition for mosquito repellant, we live in Florida we need more of that, did not kill Lice as it states it does so I had to order more stuff and this is expensive. No vetinarian prescription needed. Great flea control and good mosquito repellant wish there were more for repelling mosquitos especially to prevent Heart worms that part of this is awesom but i dont think the mosquito repellant last longer than 2 weeks. Great at abolishing fleas in every lifecycle. Hreat OTC
LOVE IT WORKS BEST FOR DOGS IN THE WOODS ALOT
"K9 Advantix ll"
Safe and works great!
I live in s.w. florida, which is mosquito headquarters, & this stuff really works on ticks, fleas & DREADED MOSQUITOS. effective, yes very. expensive, yes, very, but Jeffers gives the added option of a 2 count when one is on a very tight budget but still wants the best for their babies. YAY Jeffers.
Very happy with the K9 Advantix.
"Advantix II - I have big dogs"
i have big rotty's, I have used this advantix II for years, but it no longer works. In 2 to 3 weeks they are scratching again. No swimming pool now , just a large tank they swim almost dailey, before it did not matter , nut now it does not last
Applied this to my dog as directed 10 days ago and she is still miserable. She is not getting any flea relief at all and she is on the low end of this weight category. Granted, we did not have any winter this year and the fleas are bad but she should still get relief with this product. I would rate this a 3 at best.
"works great here in the South"
...where we have fleas all year round. I have 5 dogs ranging in weight from 4.9 lbs - 135 lbs. Plus various dogs coming in to show. No fleas, no ticks, no coat issues and I just can't have coat problems on a top ranked show dog!!!
"It does it all"
I like having a pest control that does it all. Makes it easier to remember to do their treatments once a month. With the other ones I have to buy another control for heartworm.