---
product_id: 4932185
title: "II Medium Dog Vet-Recommended Flea Treatment & Prevention | Dogs 11-20 lbs. | 6-Month Supply"
brand: "advantage"
price: "$U6379"
currency: UYU
in_stock: true
reviews_count: 8
category: "Advantage"
url: https://www.desertcart.uy/products/4932185-ii-medium-dog-vet-recommended-flea-treatment-and-prevention-dogs
store_origin: UY
region: Uruguay
---

# Waterproof after 24 hours Kills fleas within 12 hours 30-day continuous protection II Medium Dog Vet-Recommended Flea Treatment & Prevention | Dogs 11-20 lbs. | 6-Month Supply

**Brand:** advantage
**Price:** $U6379
**Availability:** ✅ In Stock

## Summary

> 🐾 Stay ahead of fleas and keep your dog’s adventures itch-free!

## Quick Answers

- **What is this?** II Medium Dog Vet-Recommended Flea Treatment & Prevention | Dogs 11-20 lbs. | 6-Month Supply by advantage
- **How much does it cost?** $U6379 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/4932185-ii-medium-dog-vet-recommended-flea-treatment-and-prevention-dogs)

## 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

- • **Rapid Flea Defense:** Starts killing fleas within 12 hours for instant relief
- • **Month-Long Protection:** Breaks the flea life cycle with 30 days of continuous coverage
- • **Effortless Application:** Topical spot-on treatment applied in seconds—no pills or collars needed
- • **Vet-Recommended Formula:** Trusted by professionals for safe, effective flea and lice control
- • **Fragrance-Free & Waterproof:** Keeps working rain or shine without any overpowering scents

## Overview

Advantage II Medium Dog is a vet-recommended, easy-to-apply topical flea treatment designed for dogs weighing 11 to 20 lbs and aged 7 weeks or older. It kills adult fleas, larvae, and eggs within 12 hours and provides 30 days of waterproof, fragrance-free protection to break the flea life cycle and prevent infestations.

## Description

Product 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. Brand Story By Advantage

Review: Effective and easy to apply - This is our 2nd box of flea medication for our terrier mix, Krypto. It works as well as the other more expensive one we used to use. I don't like the idea of applying "poison" to anyone, including Krypto. However, I use this during the spring and summer months on him with no ill effects. One thing I like about this is that it's easy to apply. I go over and scratch behind his ears with one hand while emptying this behind his neck with the other. It's more effective than powders and shampoos.
Review: Disable and kills fleas fast before they even bite your dog - I did a ton of research and found out that this brand is the topical that disables and kills flees the fastest. As far as I can tell, that’s true. As soon as I put it on my dog, she had incredible relief from the flea infestation from hell in our yard and house that we just cannot seem to eliminate. Highly recommended.

## Features

- Vet recommended flea treatment and prevention for dogs at weighing 11 to 20 lbs., at least 7 weeks of age
- Kills adult fleas, flea larvae and flea eggs for total flea prevention and treatment
- Same-day effectiveness, kills fleas within 12 hours of application and keeps working for 30 days
- Easy-to-apply topical treatment, no prescription needed
- Fragrance-free formula, waterproof after 24 hours

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004QREOZA |
| ASIN  | B004QREOZA |
| Age Range Description | 7 weeks and older |
| Best Sellers Rank | #8,628 in Pet Supplies ( See Top 100 in Pet Supplies ) #37 in Dog Flea Drops |
| Brand Name | Advantage |
| Breed Recommendation | Medium |
| Color | Mix |
| Country of Origin | Germany |
| Customer Reviews | 4.4 4.4 out of 5 stars (4,753) |
| Date First Available | March 5, 2011 |
| Date First Available  | March 5, 2011 |
| Department | Flea & Tick |
| Department  | Flea & Tick |
| Directions | Application Instructions: 1. Use only on dogs. 2. Hold applicator tube in an upright position. Pull cap off tube. 3. Turn the cap around and place other end of cap back on tube. Twist cap to break seal, then remove cap from tube. 4. Put the hair on the dog’s back, between the shoulder blades, until the skin is visible. 5. Place the tip of the tube on the skin and squeeze the tube to expel the enti… |
| Is Discontinued By Manufacturer  | No |
| Item Dimensions LxWxH | 1.38 x 4.38 x 6.63 inches |
| Item Package Dimensions L x W x H | 6.61 x 4.29 x 1.42 inches |
| Item Weight | 0.15 Pounds |
| Item model number | 86336715 |
| Item model number  | 86336715 |
| Manufacturer | Elanco US Inc |
| Manufacturer  | Elanco US Inc |
| Manufacturer recommended age  | 1 month and up |
| Material | cotton |
| Model Name | Advantage II |
| Number of Items | 6 |
| Product Dimensions  | 1.38 x 4.38 x 6.63 inches; 2.4 ounces |
| Size | 6-Pack |
| Specific Uses for Product | Parasites |
| Style | 6 doses |
| Target Audience Keyword | dogs |

## Product Details

- **Active Ingredients:** Imidacloprid, Pyriproxyfen
- **Age Range (Description):** 7 weeks and older
- **Allergen Information:** Allergen-Free
- **Brand:** Advantage
- **Dog Breed Size:** Medium
- **Item Form:** Topical
- **Item Volume:** 6 Milliliters
- **Item Weight:** 0.15 Pounds
- **Scent:** Unscented
- **UPC:** 724089202758 724089617316

## Images

![II Medium Dog Vet-Recommended Flea Treatment & Prevention | Dogs 11-20 lbs. | 6-Month Supply - Image 1](https://m.media-amazon.com/images/I/71dsfndyWQL.jpg)

## Available Options

This product comes in different **Size** options.

## 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

### ⭐⭐⭐⭐⭐ Effective and easy to apply
*by G***S on October 19, 2025*

This is our 2nd box of flea medication for our terrier mix, Krypto. It works as well as the other more expensive one we used to use. I don't like the idea of applying "poison" to anyone, including Krypto. However, I use this during the spring and summer months on him with no ill effects. One thing I like about this is that it's easy to apply. I go over and scratch behind his ears with one hand while emptying this behind his neck with the other. It's more effective than powders and shampoos.

### ⭐⭐⭐⭐⭐ Disable and kills fleas fast before they even bite your dog
*by D***E on October 17, 2025*

I did a ton of research and found out that this brand is the topical that disables and kills flees the fastest. As far as I can tell, that’s true. As soon as I put it on my dog, she had incredible relief from the flea infestation from hell in our yard and house that we just cannot seem to eliminate. Highly recommended.

### ⭐⭐⭐⭐⭐ Saved me a trip
*by J***A on January 27, 2026*

Frontline works like a charm, just like always. I usually grab it at the pet store, but busy-mom life says “click, order, done”—delivery straight to my door, zero hassle. Bonus: we don’t even have a flea problem, so it’s peace of mind for me and my pets. Easy win all around. 🐾✅

## 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 Uruguay*
*Store origin: UY*
*Last updated: 2026-02-17*