---
product_id: 5749538
title: "Bayer K9 Advantix II (11-20 lbs) 6-doses"
brand: "bayer animal health"
price: "$42"
currency: MXN
in_stock: false
url: https://www.desertcart.mx/products/5749538-bayer-k9-advantix-ii-11-20-lbs-6-doses
store_origin: MX
region: Mexico
---

# Topical treatment 6-month supply Flea & tick defense Bayer K9 Advantix II (11-20 lbs) 6-doses

**Brand:** bayer animal health
**Price:** $42
**Availability:** ❌ Out of Stock

## Summary

> 🐶 Keep your furry friend safe and stylish!

## Quick Answers

- **What is this?** Bayer K9 Advantix II (11-20 lbs) 6-doses by bayer animal health
- **How much does it cost?** $42 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.mx](https://www.desertcart.mx/products/5749538-bayer-k9-advantix-ii-11-20-lbs-6-doses)

## Best For

- bayer animal health enthusiasts

## Why This Product

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

## Key Features

- • **Vet-Recommended:** Trusted by professionals for effective pest control.
- • **Easy Application:** Simple topical solution for hassle-free use.
- • **Protect Your Pup:** Advanced flea & tick protection for dogs 11-20 lbs.
- • **Long-Lasting Relief:** 6 doses provide a full 6-month treatment.
- • **Water-Resistant Formula:** Stays effective even after baths or rain.

## Overview

Bayer K9 Advantix II is a veterinarian-recommended topical treatment designed for adult dogs weighing between 11 and 20 pounds. This product offers a comprehensive solution for flea and tick prevention, providing six doses that ensure your pet is protected for a full six months.

## Description

Bayer K9 Advantix II is a long-lasting, topical flea treatment that kills fleas within 12 hours and protects your dog from re-infestation for up to 4 weeks. It is a new and enhanced formula, with added insect growth regulators (IGR) that kill fleas, ticks and lice, as well as repelling mosquitoes and biting flies. Advantix II contains imidacloprid, permethrin and pyriproxyfen that work together to kill eggs and larvae and inhibit flea growth. Continues working even after your dog gets wet. Includes 6 monthly, easy-squeeze tube applications. Use only on dogs 7 weeks and older.

## Features

- flea & tick topical treatment
- adult dogs 11 lb - 20 lb
- 6 doses = 6 month treatment

## Product Details

- **Brand:** Bayer Animal Health
- **Item Form:** Drops
- **Scent:** Unscented
- **Item Weight:** 0.04 Pounds
- **Item Volume:** 12 Milliliters
- **Age Range (Description):** Adult
- **UPC:** 724089616180

## Images

![Bayer K9 Advantix II (11-20 lbs) 6-doses - Image 1](https://m.media-amazon.com/images/I/71Ku3Q4IlfL.jpg)

## Questions & Answers

**Q: The headline says this is a 6 pack but the description at bottom says 4 pack.  Which is correct?**
A: This is a 6 pack.  I don't see 4 pack anywhere on the bottom of my screen when I look on this listing.  Maybe I'm missing it?  It is definitely a 6 pack in the heading, and the picture.  Also, on my listing, my descriptions further clarifies it for the customer by reading "I am a licensed veterinarian and I guarantee this product is purchased directly from Bayer. This is the NEWEST Version of authentic Advantix II, 6-month supply. It is USA EPA Approved and does not expire..."  I hope this helps.

**Q: What's the expiration date on the in stock supply?  Thanks!**
A: These don't have expiration dates.  Once you open the tube it's 30 days.

---

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**Shop now:** [https://www.desertcart.mx/products/5749538-bayer-k9-advantix-ii-11-20-lbs-6-doses](https://www.desertcart.mx/products/5749538-bayer-k9-advantix-ii-11-20-lbs-6-doses)

---

*Product available on Desertcart Mexico*
*Store origin: MX*
*Last updated: 2026-01-28*