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  • Bayer Advantage II, Small Cat, 5 to 9-Pound, 4-Month
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Bayer Advantage II Flea Control Treatment for Cats

by Bayer
3,451 customer reviews
| 7 answered questions

List Price: $52.06
Price: $38.71 & FREE Shipping. Details
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Only 13 left in stock.
5 to 9-Pound
4-Month
  • Kills adult fleas, eggs and larvae
  • Remains effective even after swimming or shampooing
  • One treatment prevents further flea infestation for at least four weeks
  • Packaging may vary
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$38.71 & FREE Shipping. Details Only 13 left in stock. Sold by PETSporium and Fulfilled by Amazon.

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Bayer Advantage II, Small Cat, 5 to 9-Pound, 4-Month + Flea Control for Cats and Kittens in Purple
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Product Description

Size: 5 to 9-Pound | Pattern Name: 4-Month

Rid your home of pesky fleas with Advantage II, a fast-working, month-long flea control for your pet. Kills fleas, eggs and larvae. Killing fleas quickly is important, as it prevents them from laying eggs and helps reduce the risk of secondary problems, such as flea allergy dermatitis and tapeworms. Advantage II stops biting fleas in less than 5 minutes, over 99 percent of flea larvae within 20 minutes, at least 98 percent of fleas within 12 hours, and 100 percent of chewing lice in just 1 week. Each application of waterproof Advantage II keeps your cat free of fleas for a full month. Flea bites can cause discomfort for your pet, lead to skin infections and allergic skin reactions causing irritation, and can even transmit other disease-causing organisms. Safe for all cats 8 weeks or older that weigh 0-9 pounds. Includes a 4-month supply.

Product Details

Size: 5 to 9-Pound | Design: 4-Month
  • Product Dimensions: 6.5 x 1 x 4.2 inches
  • Shipping Weight: 0.3 ounces (View shipping rates and policies)
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B004QRHSU8
  • Item model number: 4461669
  • Average Customer Review: 4.4 out of 5 stars  See all reviews (3,451 customer reviews)
  • Amazon Best Sellers Rank: #422 in Pet Supplies (See Top 100 in Pet Supplies)
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

287 of 299 people found the following review helpful By Calla on July 9, 2011
Size: Over 9-PoundDesign: 6-Month Verified Purchase
I have several cats -indoors and out- and all of them ended up with fleas this year. In the past Frontline has worked just fine, but not this year. It seems like this year has been a horrible year for fleas, either because the fleas are simply worse or older flea preventatives and treatments aren't as effective. After talking with other pet owners I decided to try Advantage.

Two of my cats are very allergic to flea bites and were looking and feeling pretty bad until I used Advantage. Within a day of treating all of the cats, there were fewer live fleas on the cats and most of the remaining fleas were dying. I have to note that none of my cats had any allergic reaction from the treatment. A couple of them scratched and licked as fleas came up to the surface, but I kept combing the dying fleas out and the scratching/licking stopped fairly quickly. It's been a week, and the two who are allergic to flea bites are looking better, and none of the cats are licking and scratching.

Of course, I treated the carpets and furniture and pet bedding and sweep the floors regularly, so combined with the Advantage treatments, the flea infestation is now under control. Let's hope it stays that way!

An added bonus for me was that each tube of Advantage opened quietly and application was easy. The flea drops also didn't have a strong smell, unlike some other treatments I've used. That helped out a lot - no tracking down the cats or coaxing them from underneath furniture.

(I used both Advantage II for cats under 9 pounds and over 9 pounds. This review is the same for both doses.)
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186 of 201 people found the following review helpful By J. Cook on July 2, 2011
Size: Over 9-PoundDesign: 6-Month Verified Purchase
We have been an Advantage family for years. I help foster animals for a rescue and one of my new guys came in with fleas, which quickly spread to the rest of the crew. A day after applying Advantage to everyone and they were flea free. 2 of my fosters are under the 9lb limit for the purple pack, so I looked up the specs of the orange pack and it is just 1/2 a dose of the purple. I just split one of the tubes between the 2 petite cats and everything worked out without having to buy an extra box.
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157 of 170 people found the following review helpful By Noam Chomsky on June 21, 2011
Size: Over 9-PoundDesign: 4-Month Verified Purchase
Bayer Advantage II Purple 4-Month Flea Control for Cats 9+ lbs.

Great stuff works quicker then the older Advantage. I have an older cat with thinning hair and in less then 5 minutes fleas were surfacing but unlike the older stuff these fleas were dizzy and in their last throws, they barely made it to the top of his thin hair and died. Great stuff and my cat hasn't scratched since.

Also this may only apply to a select few but the tubes when you open them are silent now instead of making a little noise. I write this because my cat became very aware of this sound and knew it was coming, hated it, hated me for a week, and tried to lick it.

This time with a little milk and my silent tube I was able to apply it to his neck without him knowing.
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33 of 33 people found the following review helpful By Sound Diva on January 31, 2015
Size: Over 9-PoundDesign: 6-Month Verified Purchase
Awful for our cat. Shortly after application she foamed at the mouth and vomited. The day after application she has a bald sore spot where the product was applied and is hiding. Very unhappy cat.

Photo shows pink skin several days later. Kitty has been hiding and didn't want anyone over her.

We used the older version of this with no ill effects.

Effective at getting rid of fleas but too toxic now.
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196 of 227 people found the following review helpful By ADT944 on April 4, 2012
Size: Over 9-PoundDesign: 6-Month
I have been a cat fancier for almost 40 years so I do have some experience on this subject. I currently care for 4 indoor cats that have been inside their entire lives. Two males weighing about 14lbs and two females weighing 10 and 12 lbs. They just turned 5 years old, are litter mates and are spayed and neutered.

I have used original Advantage on them for years with fine results. However, I CANNOT say the same for Advantage II.

It appears Bayer's patent expired on original Advantage so they concocted the new and "improved" Advantage II. Well, the hair on the back of my cats' necks falls out where the Advantage II makes contact with their skin about 2 days after I apply it. And, they keep scratching as if they have fleas. This NEVER happened with original Advantage.

This occurred both times I used Advantage II to all 4 cats so I know the first application was not a fluke. I am not happy with the new Advantage II and am looking for an alternative. It obviously is causing harm to my cats and is not as effective. This has been my experience. Your mileage may vary.
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46 of 51 people found the following review helpful By Noelle on January 6, 2013
Size: 5 to 9-PoundDesign: 6-Month Verified Purchase
I cannot speak for the flea killing ability of this product, as I just put it on my cat last night.

You put the product at the base of the cat's skull, right around where their collar sits, so that they can't lick it. This morning I found that the product had somehow reacted with my cat's collar and formed some sort of glue/tar that had stuck her fur to her collar.

I have uploaded a picture of what happened. She is a little white cat who had a cute little black collar, but now she has a nice patch of black tar hair that will need to be shaved off in order to ever get it off of her. Water doesn't seem to get it to come out and maybe some heavy washing will get it to fade (I hope)

My recommendation would be to take off any collar and wait for the product to dry a bit before putting the collar back on, if possible.
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Bayer Advantage II, Small Cat, 5 to 9-Pound, 4-Month
This item: Bayer Advantage II, Small Cat, 5 to 9-Pound, 4-Month
Price: $39.09
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