--- product_id: 254644752 title: "Bayer II Topical Flea Treatment for Medium Dogs, 11-20 lbs 11-20 lb 5461731" brand: "advantage" price: "€ 148.74" currency: EUR in_stock: true reviews_count: 5 category: "Advantage" url: https://www.desertcart.it/products/254644752-bayer-ii-topical-flea-treatment-for-medium-dogs-11-20 store_origin: IT region: Italy --- # Protects up to 30 days per application Breaks flea life cycle (eggs, larvae, adults) Starts working in 12 hours Bayer II Topical Flea Treatment for Medium Dogs, 11-20 lbs 11-20 lb 5461731 **Brand:** advantage **Price:** € 148.74 **Availability:** ✅ In Stock ## Summary > 🐾 Stay flea-free, stress-free—because your dog deserves the best! ## Quick Answers - **What is this?** Bayer II Topical Flea Treatment for Medium Dogs, 11-20 lbs 11-20 lb 5461731 by advantage - **How much does it cost?** € 148.74 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/254644752-bayer-ii-topical-flea-treatment-for-medium-dogs-11-20) ## 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 - • **Waterproof After 24 Hours:** Keeps working rain or shine, so your dog’s adventures never pause. - • **Comprehensive Flea Defense:** Targets all flea life stages to stop infestations before they start. - • **Effortless Monthly Routine:** Simple spot-on application beats collars and pills—stay ahead with ease. - • **Rapid Action, Lasting Protection:** Kills fleas on contact within 12 hours—no biting needed! - • **Vet-Recommended & Fragrance-Free:** Trusted by professionals, gentle on your dog, no overpowering scents. ## Overview Advantage Bayer II Topical Flea Treatment for Medium Dogs (11-20 lbs) delivers fast-acting, vet-recommended flea control that kills fleas at every life stage through contact within 12 hours. This fragrance-free, waterproof formula provides up to 30 days of protection per monthly application, making it an easy, effective solution to keep your dog comfortable and flea-free all year round. ## Description Advantage II Medium Dog is the vet-recommended prevention and treatment of flea and lice infestations in dogs. Advantage II Medium Dog flea treatment and prevention kills adult fleas, flea larvae and flea eggs to deliver total flea protection to your dog or puppy. In fact, within 12 hours of application, Advantage II Medium Dog topical treatment gets straight to work killing fleas through contact, so they don’t have to bite your dog to die.This 30-day treatment effectively breaks the flea life cycle, controlling existing flea and lice infestations and preventing further infestations all month long. Fleas not only cause discomfort; they can also pose other health risks. Monthly use of Advantage II Medium Dog is important to protect your dog against fleas that may cause transmission of tapeworms in dogs, Flea Allergy Dermatitis and flea bite anemia.That’s why Advantage II 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 Advantage II is fragrance-free and waterproof after 24 hours of application. Check the product label for information on application and potential side effects. Advantage II Medium Dog flea and lice protection is effective on both indoor and outdoor dogs. Your dog should be at least 7 weeks old and weigh 11 to 20 lbs. to use Advantage II Medium Dog.For the ultimate convenience in care, Advantage II Medium Dog is available over the counter – no prescription needed. And, you can stock up with a subscription for regular doorstep deliveries so you never miss a monthly treatment. Once Advantage II Medium Dog is applied, your dog is ready to get right back to exploring his favorite places – from the backyard to the dog park.Advantage II Medium Dog is a trademark of Elanco or its affiliates. Review: Helps keep fleas off my little dog and it's easy to use after his bath. We live where there are squirrels and who knows what critters they carry! We have used these on all our dogs and used the cat version when we had cats. Review: I recently tried the Advantage II Medium Dog Flea Treatment for my furry friend, and while it does offer some level of protection, I can't help but feel it falls short in certain aspects. On the positive side, the convenience of a 6-month supply is appealing, and the application is relatively straightforward. My dog didn't seem bothered by it, and I appreciate the effectiveness in preventing fleas. However, my concerns arise when considering the limited scope of coverage. Advantage II is primarily designed for flea prevention, and while it does that job adequately, it doesn't provide protection against more serious illnesses transmitted by ticks. In my region, where tick-borne diseases are a significant concern, I opted for monthly pills with a prescription from my vet. The decision to switch to a different product was based on the need for comprehensive protection, especially considering the potential health risks associated with tick bites. While Advantage II may be suitable for areas where ticks are less prevalent, it didn't align with my dog's specific health requirements. In conclusion, if you're primarily dealing with flea prevention and live in an area where ticks are not a major concern, Advantage II could be a convenient option. However, for pet owners in regions with a higher risk of tick-borne diseases, it might be worth exploring alternative solutions with broader coverage, potentially involving a discussion with your vet for a prescription-based monthly treatment. ## Features - New packaging, same formula: Contains six one-month applications of Bayer Advantage II topical flea prevention and treatment for medium dogs 11-20 lbs - Advantage II works through contact, so fleas don't have to bite your dog to die - Effective flea treatment kills fleas in multiple life stages - eggs, larvae and adults - to break the flea life cycle - Easy-to-apply dog flea treatment starts working within 12 hours and protects for up to 30 days - Advantage II is vet-recommended, fragrance-free and designed specifically to treat and prevent fleas on dogs ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B004QREOZA | | Active Ingredients | Pyriproxyfen | | Age Range Description | All Life Stages | | Allergen Information | Abalone Free | | Best Sellers Rank | #84,428 in Pet Supplies ( See Top 100 in Pet Supplies ) #107 in Dog Flea Drops | | Brand Name | Advantage | | Customer Reviews | 4.5 4.5 out of 5 stars (1,736) | | Dog Breed Size | Medium | | Global Trade Identification Number | 00724089617316, 10724089367157 | | Included Components | FLEA TOPICALS | | Item Form | Topical | | Item Type Name | Bayer Advantage II Flea and Lice Treatment for Medium Dogs, 11-20 lb, 6 doses | | Item Weight | 0.15 Pounds | | Manufacturer | Bayer | | Manufacturer Part Number | 86336715 | | Model Number | 86336715 | | Scent Name | water | | Target Species | Dog | | UPC | 724089202758 724089617316 | | Unit Count | 1 Count | | Volume | 6 Milliliters | ## Product Details - **Active Ingredients:** Pyriproxyfen - **Brand:** Advantage - **Item form:** Topical - **Item weight:** 68 g - **Scent:** water ## Images ![Bayer II Topical Flea Treatment for Medium Dogs, 11-20 lbs 11-20 lb 5461731 - Image 1](https://m.media-amazon.com/images/I/71dsfndyWQL.jpg) ## Questions & Answers **Q: My dog only goes out to get groomed every 3 months or to vet. Do I need to use this all the time or can I apply it 1 week before groom/vet day?** A: This is a once a month topical treatment. You can apply prior to the appt. however it doesn't start to work until after the 1st 12 hours of being applied. Thank you. Heartland Vet Supply Customer Service **Q: is this 4 mn or 6 mn / discrepancy in description** A: There is an option for both 4 month and 6 month packages **Q: Can I return this product?** A: Hi. We recommend you contact the seller for a replacement or refund. **Q: El producto es de bayer ? o es de elanco ?? porque el enunciado dice una cosa y la caja dice otra. esto es confuso !** A: Hi. Elanco acquired Bayer Animal Health in 2020, including the Advantage II brand. To learn more about Advantage II and other Elanco products, visit PetBasics.Elanco.com. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by Y***A on 17 March 2026* Helps keep fleas off my little dog and it's easy to use after his bath. We live where there are squirrels and who knows what critters they carry! We have used these on all our dogs and used the cat version when we had cats. ### ⭐⭐⭐ Review *by D***. on 29 December 2023* I recently tried the Advantage II Medium Dog Flea Treatment for my furry friend, and while it does offer some level of protection, I can't help but feel it falls short in certain aspects. On the positive side, the convenience of a 6-month supply is appealing, and the application is relatively straightforward. My dog didn't seem bothered by it, and I appreciate the effectiveness in preventing fleas. However, my concerns arise when considering the limited scope of coverage. Advantage II is primarily designed for flea prevention, and while it does that job adequately, it doesn't provide protection against more serious illnesses transmitted by ticks. In my region, where tick-borne diseases are a significant concern, I opted for monthly pills with a prescription from my vet. The decision to switch to a different product was based on the need for comprehensive protection, especially considering the potential health risks associated with tick bites. While Advantage II may be suitable for areas where ticks are less prevalent, it didn't align with my dog's specific health requirements. In conclusion, if you're primarily dealing with flea prevention and live in an area where ticks are not a major concern, Advantage II could be a convenient option. However, for pet owners in regions with a higher risk of tick-borne diseases, it might be worth exploring alternative solutions with broader coverage, potentially involving a discussion with your vet for a prescription-based monthly treatment. ### ⭐⭐⭐⭐⭐ Review *by J***H on 21 February 2026* Keeps fleas gone ## Frequently Bought Together - Advantage II Medium Dog Vet-Recommended Flea Treatment & Prevention | Dogs 11-20 lbs. | 6-Month Supply - Advantage II Large Cat Vet-Recommended Flea Treatment & Prevention | Cats Over 9 lbs. | 6-Month Supply - Advantage II Small Cat Vet-Recommended Flea Treatment & Prevention | Cats 5-9 lbs. | 6-Month Supply --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.it/products/254644752-bayer-ii-topical-flea-treatment-for-medium-dogs-11-20](https://www.desertcart.it/products/254644752-bayer-ii-topical-flea-treatment-for-medium-dogs-11-20) --- *Product available on Desertcart Italy* *Store origin: IT* *Last updated: 2026-05-14*