---
product_id: 254644752
title: "Bayer II Topical Flea Treatment for Medium Dogs, 11-20 lbs 11-20 lb 5461731"
brand: "advantage"
price: "₪564"
currency: ILS
in_stock: true
reviews_count: 5
category: "Advantage"
url: https://www.desertcart.co.il/products/254644752-bayer-ii-topical-flea-treatment-for-medium-dogs-11-20
store_origin: IL
region: Israel
---

# Protects up to 30 days 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:** ₪564
**Availability:** ✅ In Stock

## Summary

> 🐾 Stay ahead of fleas, 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?** ₪564 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.il](https://www.desertcart.co.il/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 even if your dog loves to splash or swim.
- • **Effortless Monthly Routine:** Easy spot-on application with 6 doses—never miss a month of protection.
- • **Complete Flea Lifecycle Defense:** Targets eggs, larvae, and adults to stop infestations before they start.
- • **Rapid Action, Lasting Protection:** Kills fleas on contact within 12 hours, so your dog stays itch-free fast.
- • **Vet-Recommended & Fragrance-Free:** Trusted by professionals and gentle on your dog’s senses.

## Overview

Advantage Bayer II Topical Flea Treatment for Medium Dogs (11-20 lbs) delivers fast-acting, vet-recommended flea control that kills fleas at all life stages through contact within 12 hours. This fragrance-free, waterproof formula provides up to 30 days of continuous protection with easy monthly spot-on applications, ensuring your dog stays comfortable and flea-free whether indoors or outdoors.

## 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: They work!
Review: Adequate Flea Prevention, but Limited Coverage

## 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 | #80,360 in Pet Supplies ( See Top 100 in Pet Supplies ) #94 in Dog Flea Drops |
| Brand | Advantage |
| Brand Name | Advantage |
| Customer Reviews | 4.5 out of 5 stars 1,875 Reviews |
| 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 | 68 g |
| Item form | Topical |
| Item volume | 6 Milliliters |
| Item weight | 68 g |
| Manufacturer | Bayer |
| Scent | water |
| 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

### ⭐⭐⭐⭐⭐ They work!
*by D***2 on 7 November 2025*



### ⭐⭐⭐ Adequate Flea Prevention, but Limited Coverage
*by D***. on 29 December 2023*



### ⭐⭐⭐⭐⭐ worked great!!
*by D***Z on 24 September 2025*



## 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

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*Product available on Desertcart Israel*
*Store origin: IL*
*Last updated: 2026-02-09*