








🛡️ Stay ahead of fleas—because your big cat deserves the best defense!
Advantage Bayer II for Large Cats is a vet-recommended topical flea treatment designed for cats over 9 lbs. It kills adult fleas, larvae, and eggs within 12 hours and provides 30 days of waterproof, fragrance-free protection. Easy to apply and effective for both indoor and outdoor cats, it breaks the flea life cycle to prevent infestations and associated health risks.












| ASIN | B004QBDO0M |
| Batteries Included | No |
| Best Sellers Rank | #24,539 in Pet Supplies ( See Top 100 in Pet Supplies ) #19 in Cat Flea Drops |
| Customer Reviews | 4.6 4.6 out of 5 stars (36,185) |
| Date First Available | 7 August 2012 |
| Item Form | Topical |
| Item Weight | 22.7 g |
| Item model number | 86336774 |
| Pet Life Stage | Kitten |
| Product Dimensions | 3.49 x 11.11 x 16.83 cm; 22.68 g |
| Quantity | 1 |
| Volume | 4.8 Milliliters |
| batteries required | No |
S**L
Worked well for our cats. We have two three year old large maine coons and a four year old large rag doll. We used the Capstar pill first and then applied the Advantage topical 8 hours later. They had no reaction to the Advantage, aside from stopping itching. We travel with them and for the first time they picked up a few fleas during our recent September trip. So we wanted something pretty quickly to prevent the fleas from multiplying and causing ongoing issues. This combo worked well. We are noticing that they are scratching a bit now, but it is early for their second monthly treatment and we haven't found any live fleas. So I'm not quite sure what the occasional itching is about now. Overall, this flea method worked well though. The capstar does make cats run and get agitated for an hour or so since it kills the fleas on them and I guess they feel the fleas moving on them as they die. Aside from zoomys, and excessive self grooming the first few hours after ingesting the Capstar pill, no other issues though. And there was no observable reaction to the Advantage topical at all.
D**I
PROS: works well, appropriate for large cats, easy application, ability to buy in bulk CONS: expensive, sometimes applicator breaks, stinky smell! I first purchased this product in August 2015, Again in Janurary 2016, and I just purchased this again (July 2016). I purchased this product to help control fleas on my two cats, one of which is an indoor/outdoor cat. The neighborhood I live in has terrible fleas, so using flea medication is essential. The product arrived quickly, and came with thorough instructions, which I skimmed. The medication comes in a tiny tube incased in a foil packet. I opened the packet, and took out the tube. You break the seal on the tube by inverting the cap and puncturing the seal. I did this and accidentally twisted, causing the point on the top of the lid to become lodged in the opening of the tube. This was stressful because each treatment is so expensive. I realized, however, that I could fish out the point with some tweezers and still use the product! I then pinned my cat down and applied the product to the back of their neck. While I did see a decrease in fleas, I still saw several. I increased application to once every two weeks, and added baths and flea combing to the regime. Eventually, I was able to apply only once a month. During the summer the flea population seems to increase, which also coincided with my adoption of a second cat. I noticed the cat came in with fleas and I applied this medication, but it didn't seem to do much. I then woke up one morning with about 30 flea bites covering my lower legs and feet! I was horrified, and I knew it was time to get serious! After a bit of research I realized apart of why the medication may have been ineffective previously was that I wasn't applying it correctly (ha! Thats what i get for skimming!) Rereading instructions, I realized that I need to part my cats fur and try to make skin contact with the medication. I also learned that if my cats lick it it will taste bitter, discouraging licking behaviors of the medication. I'm going to include a few steps I took to control fleas in my house, unrelated to this product, but I think it might be useful! Scroll down to my conclusion if uninterested :) Anyways, so my cats hate baths (they were both rescued and are older so its hard to introduce new behaviors, I mean, I'm no jackson galaxy) For this reason flea baths always stressed me out and I was worried about my cats catching a cold or licking the flea shampoo and getting sick.Instead of bathing my cats, I gave them a pill that will kill all the fleas on them within 6 hours( https://www.amazon.com/Novartis-Capstar-Flea-Tablets-Count/dp/B005Z6UL1M/ref=sr_1_2?ie=UTF8&qid=1469319334&sr=8-2&keywords=flea+killer+pill). Using this pill in conjunction with this treatment, was a life saver! The next thing I did was give my pets a dry, diatomaceous earth bath. If you choose to do this with your cats, make sure you use food grade DE. DE is a great natural alternative for flea control, but the dust can be damaging to yourself and your cats! To prevent this, I wore a bandana around my mouth, and I stuck a comfy cone on my cat ( https://www.amazon.com/Comfy-Cone-E-Collar-Large-Black/dp/B000XY7CKE/ref=sr_1_1?ie=UTF8&qid=1469319818&sr=8-1&keywords=comfy+cone). My cats didn't like it, but it was safer and easier than flea baths! I also put some apple cider vinegar diluted with water in a spray bottle, and I sprayed down my cats. They hated this, but I think it maybe helped the fleas? It also reduced dust from the DE. CONCLUSION: I think that all cat owners should use this product on their cats, even if their cats are indoor cats. an inch of prevention is worth a pound of solution, and this is especially true for fleas. Make sure to treat your cats regularly and make sure you apply it correctly! included some photos of my happy flea free cats :)
K**E
Does its job! Keeps the fleas away!
E**E
It's the only thing I ever buy for my cats. I use flea tickment treats and I give my cats a bath. I have one that goes outside and two that stay in the house but with me keeping up with them too I think it helps. But it's still the only TOPICAL flea treatment I get for them. I don't give them flea collars.
D**E
This is the most effective flea drops I have ever purchased. I will not bother with any other brand again.
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