---
product_id: 293579571
title: "Advantage Bayer II Flea Treatment for Small Cats, 5-9 lb, 4"
brand: "advantage"
price: "€ 106.26"
currency: EUR
in_stock: true
reviews_count: 5
category: "Advantage"
url: https://www.desertcart.sk/products/293579571-advantage-bayer-ii-flea-treatment-for-small-cats-5-9
store_origin: SK
region: Slovakia
---

# Water-resistant formula Effective up to 6 weeks Kills fleas & larvae in 12 hrs Advantage Bayer II Flea Treatment for Small Cats, 5-9 lb, 4

**Brand:** advantage
**Price:** € 106.26
**Availability:** ✅ In Stock

## Summary

> 🐾 Stay flea-free, stress-free—because your cat deserves the Advantage!

## Quick Answers

- **What is this?** Advantage Bayer II Flea Treatment for Small Cats, 5-9 lb, 4 by advantage
- **How much does it cost?** € 106.26 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/293579571-advantage-bayer-ii-flea-treatment-for-small-cats-5-9)

## Best For

- advantage enthusiasts

## Why This Product

- Trusted advantage brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Long-Lasting Defense:** Up to 6 weeks of continuous flea control—stay ahead of infestations with monthly ease.
- • **All-Weather Protection:** Water-resistant formula keeps working after swimming, shampooing, or rain—no interruptions.
- • **Rapid Flea Eradication:** Destroys 98-100% of fleas and larvae within 12 hours—fast relief for your feline.
- • **Breaks the Flea Life Cycle:** Kills fleas before they lay eggs, stopping infestations before they start—your cat’s ultimate shield.
- • **Targeted & Safe Application:** Pre-measured, child-proof applicators designed specifically for small cats (5-9 lbs) for precise dosing.

## Overview

Advantage Bayer II Flea Treatment is a topical, water-resistant solution designed for small cats (5-9 lbs). It kills 98-100% of fleas and larvae within 12 hours and continues to protect for up to 6 weeks. Applied monthly via easy, child-proof applicators, it spreads naturally on the skin to provide full-body coverage and breaks the flea life cycle by preventing egg laying. Trusted by millions, it’s the professional choice for persistent, effective flea control.

## Description

Advantage Flea Control Is A Monthly Application That Kills 98 To 100% Of Fleas And Their Larvae Within 12 Hours. In Addition Re-Infesting Fleas Are Killed Within 2 Hours. Advantage Is Applied To The Back Of The Neck On Cats And Between The Shoulder Blades On Dogs. It Spreads Naturally On The Skin Surface At The Hair Root Level Aided By Body Movement To Provide Whole Body Coverage. Advantage A Is Water-Resistant Flea Medication So It Continues To Kill Fleas Even After A Shampooing Swimming Rain Or Exposure To Sunlight. Advantage Is For Dogs Over 7 Weeks And Cats Over 8 Weeks Old. Do Not Use Dog Product On Cats Or Cat Product On Dogs.Advantage - The Flea Specialist! Kills 98 To 100% Of Fleas And Their Larvae Within 12 Hours Of Application. Re-Infesting Fleas Are Killed Within 2 Hours. Kills Fleas Before They Have The Chance To Lay Eggs - Thus Breaking The Flea Life Cycle. Effective Up To 6 Weeks! Water Resistant - Continues To Kill Fleas After Swimming Shampooing Rain Or Exposure To Sunlight. In Pre-Measured Child Proof Easy-To-Use Applicator Tubes. Stain And Odor Free!.

Review: IT'S AN UPHILL BATTLE! - All four of my cats have been inside cats from the start and yet got fleas! There have been no recent vet visits to blame either! Right from the start of treating my cats for their flea, the box of ADVANTAGE II, itself, presented a problem. It had a strange date, the ONLY date on it which I could find. Today is July 26, 2018), and on the box was V-03/2015. I was taken aback! The manufacture took place in March of 2015? Or was that an expiration date? WHAT did V-03/2015 MEAN? No explanation was found on the box nor in the instructions! I was concerned. I do not like being concerned about something which WILL enter my cats' blood stream! So I went to Bayer's site and discovered that all of us should not be concerned that there is no expiration date. OK. Then why in the past did this same brand have expiration dates on their boxes? So this is a "forever" poison which people could use on their cats in 2084? THAT is kind of scary if you think about it. You may be too young to remember DDT scares and the incomprehensible half-life of it. I was not able to get the two different weight recommended doses for two of my cats in the "small" category AND the doses for the two cats in the "large" category to begin treatment on the same day. And I wanted everything to start on the same day if possible AND when a vet would be on-call for any emergencies. And yes, emergencies happen with this flea killer according to some people. Advantage can take a few days to begin working once you begin treatment. Meanwhile, your animals are suffering. So I bought Capstar after a LOT of research which says Capstar gives relief within about six hours for cats and a shorter amount of time for dogs. Capstar is an oral, well, let's face it, insecticide. One can actually dose every twenty-four hours for at least a semi-permanent approach. But I don't see me getting a pill down four animals every single day for although easy at first, cats catch on quickly when you are coming at them with a pill, don't they? And eggs and larvae are NOT killed with this product. Remember that fighting fleas is an uphill battle of long-term treatment. BUT Capstar has filled in until our beginning the monthly treatments begin and within FOUR hours, our four cats were finally at PEACE with their bodies again. I do not exaggerate one bit! They were at peace with all they had gone through, within four hours! Again, I made sure a vet was on-call before application and during the wait-time of four to six hours. Before Capstar, there had been hair being pulled off (not out, exactly) by one, one running around crazy, one who developed an ultra sensitive back and could not stand to be patted or touched on his back anymore, and the fourth had begun gnawing his feet going in a pitiful way. Not one of the cats acted the SAME way toward the fleas and THAT threw my "diagnosis" of what in the world was going on. Was it the new snacks or a newly added brand to the multiple brands of wet cat food they eat? This misery occurred with our cats occurred within a week or two before I figured out it was FLEAS, not the change in food nor in our environment, causing stress. Our routine had changed due to husband's surgery and the installation of a somewhat noisy stair lift (probably a monster in their eyes, at least until they became used to it). I thought maybe all of that had stressed the cats or they were reflecting MY stress. After all, not two of the cats were behaving in the same way and I was homebound looking after my husband after his heart surgery and couldn't get FOUR cats to the vet by myself! Within four hours of EASY dosing with Capstar, my cats were again, themselves. Oh, my gosh! We had our cats back!!!! Those tiny pills and an index finger to the back of the mouth to a rolled over, sleepy cat were easy to administer. Just get them when they are asleep and roll them over before they know what is going on! All four seemed much relieved so quickly and, therefore, so was I. All of us piled in the bed last night with them not a one twitching, scratching or jerking around. PEACE at last! No fear for me getting bitten either! And Capstar instructions say that at that point, after about six hours max, there are no LIVE fleas at all on your pet. And it certainly seemed that way. It was a great night with them at last. My cats are indoor cats, completely. But ONE pregnant female flea, waiting on our doorstep or brought in by a worker, may have been the culprit which started this nightmare. This summer has been wet and warm. Fleas love that. Now, here's what I know from a similar infestation about seven years ago and from current research this time: VACUUM, VACUUM, VACUUM your floors and furniture for weeks! Vacuum every day and dispose of what you have vacuumed immediately. Eggs can live in your upholstery or carpets for months waiting for the right conditions to hatch many months after you thought you had everything under control! That is why treating with a monthly treatment FOR MONTHS and months will be necessary EVEN WITH INDOOR CATS. Only after about six or seven months last time did I stop the monthly treatments. I did NOT want to be putting poison on my cats' skins unnecessarily, but nor did I want the nasty flea critters back from OLD EGGS! I consider ourselves very luck to have had seven or more years flea-less! THAT is quite a victory! We live in a wildlife filled area. And flea types WILL change host species if they have to. That may have had something to do with the new fleas. Wash pet bedding (that means your spreads too!) very, very regularly. A substitute is putting something like a spread in the dryer every day or so for at least a week or so to kill the eggs AFTER you begin with the monthly treatment. There may be a few live fleas left somewher in your home and so you must be diligent. Look, this is a war! And with resistance to the insecticides used in these flea products apparently mounting, you have to look at this as if it is an emergency to get under control. And when you think you have it under control, do not stop with the vacuuming, the washing, and the monthly treatments for at least six months or so, I found. I think some people want the easy way out. Well, who doesn't, really? But getting rid of fleas cannot be approached in a "easy way out," amount of effort. This will take EFFORT and PERSISTENCE, in capital letters! Advantage II is a great product, but WE have to do our part too. Merely squeezing a liquid at the base of our cats' skulls is only a PART of the battle. Remember those eggs are laying in wait to hatch and begin the cycle all over again. Fleas cost SOOOOOOOOOOOOOOOOOOOO much misery for my cats! HUNDREDS of dollars will be spent by the time this war is over! Poison on my cats. ENDLESS work for me vacuuming and washing bedding and so on. And we are older and pretty darned infirm, but I am forced to vacuum and vacuum and vacuum ad infinitum! And we spend our retirement money and watch, most unfortunately, as our fur babies suffered. Get the CAPSTAR for IMMEDIATE relief for your cats (OR dogs!) and then get the Bayer Advantage II IN THE PROPER size for your kitty and begin the war which can be won! Capstar's instructions say it can be used with other flea treatments, but I am wary of that! You will have to hit this on all sides, especially at first! Just read, read, read all the instructions for safe usage of any of these products and be cautious upon application and for hours afterward. But boy am I pleased with the Capstar for the immediacy of its relief! Seeing our fur babies suffer is so sad for us. Unfortunately, it took me two weeks to figure out that it was FLEAS causing our cats' odd behaviors like jerking around, having very ultra sensitive backs, biting fur off (not actually out) , and excessive licking of feet. Each cat had it own timing for reacting to the fleas as one cat would react a certain way and another cat was reacting in a different way. Two cats started reactions a week before the other two finally succumbed to symptoms! And so, I thought there were different causes of their behaviors or their behaviors were reactions to the new stress in this home. Oh, if you cannot SEE the fleas on your cat but suspect them: dampen your hand with water and rub it lightly over the fur near where the tail starts. If you see tiny black specks, kind of like black pepper, those are minute bits are, well, flea excrement, from your cat being bitten. That is how I figured out what was going on! And while you are in "that" area, be on the look-out for tapeworms as are a different story. Fleas carry tapeworms! Just HOPE with all your might that you never see tiny, rice-like THINGS near your cats' under tail area! The fleas WILL lose this fight. I guarantee that! We are off to a good start with Capstar and Advantage II and the vacuuming of floors and upholstery and washing of bedding. We got by with seven years flea free for our ALWAYS indoor cats! And yet, here we go again! And I am a clean freak....so yes, it CAN happen in a very well kept, clean home! Keep at it. Take it seriously and work at it! It is a multi-pronged attck which will be needed but you have no choice! Two products: Capstar and Advantage II. One used first for IMMEDIATE relief (can dose every twenty-four hours for a while if necessary) and then the other for monthly applied treatments. I do NOT mix the products out of fear but read the Capstar info. The most important thing is that the products CANNOT do it all alone! You are going to have to work yourself bozo too!
Review: 10/10 Flea Medication 🐈‍⬛ - Worked really well on my Baby Grace 💖 No skin irritation and the cheapest best flea medication I found. No side affects and the scent/odor subsides between 12-48 hours.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Active Ingredients | Imidacloprid, Pyriproxyfen |
| Brand | Advantage |
| Item form | Topical |
| Item volume | 1.6 Milliliters |
| Item weight | 0.05 Pounds |
| Scent | water |

## Product Details

- **Active Ingredients:** Imidacloprid, Pyriproxyfen
- **Brand:** Advantage
- **Item form:** Topical
- **Item weight:** 23 g
- **Scent:** water

## Images

![Advantage Bayer II Flea Treatment for Small Cats, 5-9 lb, 4 - Image 1](https://m.media-amazon.com/images/I/71xFS9myIxL.jpg)

## Questions & Answers

**Q: How do you get the packaging open from Walmart?  It is in a hard plastic case. Cannot open!**
A: Did you steal this? The hard case is for anti theft. The product is taken out of the case at checkout. Take your receipt back to Walmart and have them take it out of the case!

**Q: LICE**
A: It worked on lice for the cats I put it on. One of them had a bad infestation. She’ll need more applied again. The life cycle is 3-4 weeks of a louse.

**Q: What is the difference between Advantage II and Advantage 9 Topical Solution.**
A: I dont have the answer but noticed the mention of Advantage 9. I bought Advantage 9 at the vets office. They said it killed fleas, ticks, and also wormed the cat. I paid around $25.00 for a 30 day supply. It works but i cannot find it anywhere else. Must be specific to vets offices.

**Q: Has product been updated to 2019? Also....dumb question, but how do you use it?**
A: I don't know about the update.  It is very easy to use.  Each dose comes in a little vial.  You take off the end and squeeze it on the back of your cat's skull where it joins his shoulders.  It's a place that he can't lick.  If he happens to somehow get some on where he does lick, he will leave it alone after one taste.  My grandson holds our cat and I put it on.  He doesn't seem to mind it at all.

## Customer Reviews

### ⭐⭐⭐⭐⭐ IT'S AN UPHILL BATTLE!
*by A***R on 26 July 2018*

All four of my cats have been inside cats from the start and yet got fleas! There have been no recent vet visits to blame either! Right from the start of treating my cats for their flea, the box of ADVANTAGE II, itself, presented a problem. It had a strange date, the ONLY date on it which I could find. Today is July 26, 2018), and on the box was V-03/2015. I was taken aback! The manufacture took place in March of 2015? Or was that an expiration date? WHAT did V-03/2015 MEAN? No explanation was found on the box nor in the instructions! I was concerned. I do not like being concerned about something which WILL enter my cats' blood stream! So I went to Bayer's site and discovered that all of us should not be concerned that there is no expiration date. OK. Then why in the past did this same brand have expiration dates on their boxes? So this is a "forever" poison which people could use on their cats in 2084? THAT is kind of scary if you think about it. You may be too young to remember DDT scares and the incomprehensible half-life of it. I was not able to get the two different weight recommended doses for two of my cats in the "small" category AND the doses for the two cats in the "large" category to begin treatment on the same day. And I wanted everything to start on the same day if possible AND when a vet would be on-call for any emergencies. And yes, emergencies happen with this flea killer according to some people. Advantage can take a few days to begin working once you begin treatment. Meanwhile, your animals are suffering. So I bought Capstar after a LOT of research which says Capstar gives relief within about six hours for cats and a shorter amount of time for dogs. Capstar is an oral, well, let's face it, insecticide. One can actually dose every twenty-four hours for at least a semi-permanent approach. But I don't see me getting a pill down four animals every single day for although easy at first, cats catch on quickly when you are coming at them with a pill, don't they? And eggs and larvae are NOT killed with this product. Remember that fighting fleas is an uphill battle of long-term treatment. BUT Capstar has filled in until our beginning the monthly treatments begin and within FOUR hours, our four cats were finally at PEACE with their bodies again. I do not exaggerate one bit! They were at peace with all they had gone through, within four hours! Again, I made sure a vet was on-call before application and during the wait-time of four to six hours. Before Capstar, there had been hair being pulled off (not out, exactly) by one, one running around crazy, one who developed an ultra sensitive back and could not stand to be patted or touched on his back anymore, and the fourth had begun gnawing his feet going in a pitiful way. Not one of the cats acted the SAME way toward the fleas and THAT threw my "diagnosis" of what in the world was going on. Was it the new snacks or a newly added brand to the multiple brands of wet cat food they eat? This misery occurred with our cats occurred within a week or two before I figured out it was FLEAS, not the change in food nor in our environment, causing stress. Our routine had changed due to husband's surgery and the installation of a somewhat noisy stair lift (probably a monster in their eyes, at least until they became used to it). I thought maybe all of that had stressed the cats or they were reflecting MY stress. After all, not two of the cats were behaving in the same way and I was homebound looking after my husband after his heart surgery and couldn't get FOUR cats to the vet by myself! Within four hours of EASY dosing with Capstar, my cats were again, themselves. Oh, my gosh! We had our cats back!!!! Those tiny pills and an index finger to the back of the mouth to a rolled over, sleepy cat were easy to administer. Just get them when they are asleep and roll them over before they know what is going on! All four seemed much relieved so quickly and, therefore, so was I. All of us piled in the bed last night with them not a one twitching, scratching or jerking around. PEACE at last! No fear for me getting bitten either! And Capstar instructions say that at that point, after about six hours max, there are no LIVE fleas at all on your pet. And it certainly seemed that way. It was a great night with them at last. My cats are indoor cats, completely. But ONE pregnant female flea, waiting on our doorstep or brought in by a worker, may have been the culprit which started this nightmare. This summer has been wet and warm. Fleas love that. Now, here's what I know from a similar infestation about seven years ago and from current research this time: VACUUM, VACUUM, VACUUM your floors and furniture for weeks! Vacuum every day and dispose of what you have vacuumed immediately. Eggs can live in your upholstery or carpets for months waiting for the right conditions to hatch many months after you thought you had everything under control! That is why treating with a monthly treatment FOR MONTHS and months will be necessary EVEN WITH INDOOR CATS. Only after about six or seven months last time did I stop the monthly treatments. I did NOT want to be putting poison on my cats' skins unnecessarily, but nor did I want the nasty flea critters back from OLD EGGS! I consider ourselves very luck to have had seven or more years flea-less! THAT is quite a victory! We live in a wildlife filled area. And flea types WILL change host species if they have to. That may have had something to do with the new fleas. Wash pet bedding (that means your spreads too!) very, very regularly. A substitute is putting something like a spread in the dryer every day or so for at least a week or so to kill the eggs AFTER you begin with the monthly treatment. There may be a few live fleas left somewher in your home and so you must be diligent. Look, this is a war! And with resistance to the insecticides used in these flea products apparently mounting, you have to look at this as if it is an emergency to get under control. And when you think you have it under control, do not stop with the vacuuming, the washing, and the monthly treatments for at least six months or so, I found. I think some people want the easy way out. Well, who doesn't, really? But getting rid of fleas cannot be approached in a "easy way out," amount of effort. This will take EFFORT and PERSISTENCE, in capital letters! Advantage II is a great product, but WE have to do our part too. Merely squeezing a liquid at the base of our cats' skulls is only a PART of the battle. Remember those eggs are laying in wait to hatch and begin the cycle all over again. Fleas cost SOOOOOOOOOOOOOOOOOOOO much misery for my cats! HUNDREDS of dollars will be spent by the time this war is over! Poison on my cats. ENDLESS work for me vacuuming and washing bedding and so on. And we are older and pretty darned infirm, but I am forced to vacuum and vacuum and vacuum ad infinitum! And we spend our retirement money and watch, most unfortunately, as our fur babies suffered. Get the CAPSTAR for IMMEDIATE relief for your cats (OR dogs!) and then get the Bayer Advantage II IN THE PROPER size for your kitty and begin the war which can be won! Capstar's instructions say it can be used with other flea treatments, but I am wary of that! You will have to hit this on all sides, especially at first! Just read, read, read all the instructions for safe usage of any of these products and be cautious upon application and for hours afterward. But boy am I pleased with the Capstar for the immediacy of its relief! Seeing our fur babies suffer is so sad for us. Unfortunately, it took me two weeks to figure out that it was FLEAS causing our cats' odd behaviors like jerking around, having very ultra sensitive backs, biting fur off (not actually out) , and excessive licking of feet. Each cat had it own timing for reacting to the fleas as one cat would react a certain way and another cat was reacting in a different way. Two cats started reactions a week before the other two finally succumbed to symptoms! And so, I thought there were different causes of their behaviors or their behaviors were reactions to the new stress in this home. Oh, if you cannot SEE the fleas on your cat but suspect them: dampen your hand with water and rub it lightly over the fur near where the tail starts. If you see tiny black specks, kind of like black pepper, those are minute bits are, well, flea excrement, from your cat being bitten. That is how I figured out what was going on! And while you are in "that" area, be on the look-out for tapeworms as are a different story. Fleas carry tapeworms! Just HOPE with all your might that you never see tiny, rice-like THINGS near your cats' under tail area! The fleas WILL lose this fight. I guarantee that! We are off to a good start with Capstar and Advantage II and the vacuuming of floors and upholstery and washing of bedding. We got by with seven years flea free for our ALWAYS indoor cats! And yet, here we go again! And I am a clean freak....so yes, it CAN happen in a very well kept, clean home! Keep at it. Take it seriously and work at it! It is a multi-pronged attck which will be needed but you have no choice! Two products: Capstar and Advantage II. One used first for IMMEDIATE relief (can dose every twenty-four hours for a while if necessary) and then the other for monthly applied treatments. I do NOT mix the products out of fear but read the Capstar info. The most important thing is that the products CANNOT do it all alone! You are going to have to work yourself bozo too!

### ⭐⭐⭐⭐⭐ 10/10 Flea Medication 🐈‍⬛
*by C***Z on 5 June 2026*

Worked really well on my Baby Grace 💖 No skin irritation and the cheapest best flea medication I found. No side affects and the scent/odor subsides between 12-48 hours.

### ⭐⭐⭐⭐⭐ Easy to Apply and No Issues So Far
*by V***. on 10 June 2026*

I’ve used Advantage II on my cats before and decided to purchase it again. It was easy to apply, and my cats tolerated it well without any irritation. It’s hard for me to know exactly how much of the flea control is from this product alone, but I haven’t noticed any problems and will continue using it as part of our flea prevention routine. Overall, a trusted product that’s simple to use.

## Frequently Bought Together

- Advantage II Small Cat Vet-Recommended Flea Treatment & Prevention | Cats 5-9 lbs. | 4-Month Supply
- Advantage II Large Cat Vet-Recommended Flea Treatment & Prevention | Cats Over 9 lbs. | 4-Month Supply
- Advantage II Kitten Vet-Recommended Flea Treatment & Prevention | Cats 2-5 lbs. | 2-Month Supply

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-06-25*