---
product_id: 386072035
title: "Shield Flea & Tick Treatment for Medium Dogs 21-40 lbs. Count of 6"
brand: "frontline"
price: "€ 158.73"
currency: EUR
in_stock: true
reviews_count: 5
category: "Frontline"
url: https://www.desertcart.ie/products/386072035-shield-flea-and-tick-treatment-for-medium-dogs-21-40
store_origin: IE
region: Ireland
---

# fastest working FRONTLINE formula effective for dogs 21-40 lbs 30-day waterproof protection Shield Flea & Tick Treatment for Medium Dogs 21-40 lbs. Count of 6

**Brand:** frontline
**Price:** € 158.73
**Availability:** ✅ In Stock

## Summary

> 🛡️ Protect your pup like a pro—because every walk deserves worry-free vibes!

## Quick Answers

- **What is this?** Shield Flea & Tick Treatment for Medium Dogs 21-40 lbs. Count of 6 by frontline
- **How much does it cost?** € 158.73 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/386072035-shield-flea-and-tick-treatment-for-medium-dogs-21-40)

## Best For

- frontline enthusiasts

## Why This Product

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

## Key Features

- • **Anywhere, Anytime:** Continuous protection whether indoors, on hikes, or neighborhood strolls—never miss a moment together.
- • **Month-Long Shield:** Waterproof formula keeps fleas and ticks at bay for a full 30 days, rain or shine.
- • **Rapid Action Defense:** Fastest working FRONTLINE product rapidly covers your dog’s entire body for immediate protection.
- • **Vet-Recommended Safety:** Gentle enough for puppies 9 weeks and older, with no neurological side effects—trusted by professionals.
- • **Broad-Spectrum Protection:** Kills and repels all tick stages, mosquitoes, chewing lice, and flea eggs to stop infestations before they start.

## Overview

FRONTLINE Shield Flea & Tick Treatment offers medium dogs (21-40 lbs) a fast-acting, waterproof, and vet-recommended monthly topical solution that kills and repels fleas, ticks (including Lyme disease carriers), mosquitoes, and chewing lice. Its unique formula deposits in sebaceous glands for continuous protection, effective even after swimming or bathing, making it the ultimate all-weather defense for your furry companion.

## Description

FRONTLINE Shield for Dogs, from the number 1 name in flea and tick protection (1), is the fastest working FRONTLINE product. It is proven flea and tick protection with repellency action against ticks and mosquitoes. FRONTLINE Shield repels ticks that may transmit Lyme disease and mosquitos that may lead to heartworm disease. The long-lasting, 3-in-1 flea and tick topical formula protects your dog for a full 30 days. It is an effective flea and tick treatment for pups big and small, effective for puppies as young as 9 weeks and weighing at least 5 pounds. After application, the treatment rapidly covers your dog's entire body and deposits in the sebaceous glands. These glands act as a reservoir, continuously replenishing the treatment onto your dog, working even if your dog gets wet (2). Apply monthly to ensure your dog is protected all year long. So, no matter your plans, FRONTLINE Shield protects from fleas and ticks —inside your house, outside on walks and hikes, and everywhere in-between. Protect your dog with FRONTLINE Shield so you can go anywhere together. Subscribe and save today to make it easier to keep your dogs or cats protected year-round and make sure you never run out of FRONTLINE Shield. Be sure to visit our brand store and follow us to stay up to date on new FRONTLINE products, features, tips and more. References: (1) BI Marketing Excellence Survey performed by Kynetec, November 2023. (2) Waterproof 24 hours after application.

Review: Set a monthly reminder on your phone and apply the product. Your dog will not have neurological problems after application. Minimal days of a greasy area where med is applied. Definitely beats an oral tab that can cause seizures. This is what our vet recommends and sells in his clinic for dogs that do not tolerate the oral tablets. Our dogs (2 inside dogs and 2 outside farm dogs) do not have fleas or ticks.
Review: Came as advertised

## Features

- FRONTLINE Shield provides proven flea and tick protection with repellency action against ticks and mosquitoes
- Kills and repels all stages of ticks, including those that may transmit Lyme disease
- Kills chewing lice and adult fleas, flea eggs and larvae to prevent re-infestations
- Convenient to use, easy to apply, waterproof formula protects for a full 30 days
- For dogs big and small; effective for puppies as young as 9 weeks and weighing at least 5 pounds

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08P3BJ7CB |
| Allergen Information | Octopus Free |
| Best Sellers Rank | #56,333 in Pet Supplies ( See Top 100 in Pet Supplies ) #66 in Dog Flea Drops |
| Breed Recommendation | Medium |
| Color | Blue Box |
| Customer Reviews | 4.2 4.2 out of 5 stars (133) |
| Date First Available | 23 November 2020 |
| Item Form | Stick |
| Item Weight | 50 g |
| Item model number | 854 |
| Manufacturer recommended age | 1 month and up |
| Number of Items | 6 |
| Pet Life Stage | All Life Stages |
| Pet Type | Dog |
| Product Dimensions | 3.76 x 14.72 x 11.16 cm; 50 g |
| Quantity | 1 |
| Size | 6 Count |
| Specific Uses | Parasites |
| Storage Information | Store unused product in original container only, in a cool dry place, out of reach of children and animals. |
| Volume | 12 Milliliters |
| batteries required | No |

## Product Details

- **Active Ingredients:** Fipronil, Permethrin, Pyriproxyfen
- **Brand:** Frontline
- **Item form:** Stick
- **Item volume:** 12 Milliliters
- **Scent:** Unscented

## Images

![Shield Flea & Tick Treatment for Medium Dogs 21-40 lbs. Count of 6 - Image 1](https://m.media-amazon.com/images/I/71mCeVteXWL.jpg)

## Available Options

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

## Questions & Answers

**Q: Do i need to keep my dogs separate from each other after i put this on them**
A: I do keep my dog separate from everybody for a few hours. I would if I were you.

**Q: How does this product differ from the regular Frontline Plus?**
A: It states that it also repels mosquitoes. I live in a tropical island so that is important to avoid heart worms.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by V***P on 1 January 2026*

Set a monthly reminder on your phone and apply the product. Your dog will not have neurological problems after application. Minimal days of a greasy area where med is applied. Definitely beats an oral tab that can cause seizures. This is what our vet recommends and sells in his clinic for dogs that do not tolerate the oral tablets. Our dogs (2 inside dogs and 2 outside farm dogs) do not have fleas or ticks.

### ⭐⭐⭐⭐⭐ Review
*by A***R on 13 December 2025*

Came as advertised

### ⭐⭐⭐⭐⭐ Review
*by F***I on 6 October 2023*

Works great! We don't have a flea issue in our area, but we do have mosquitoes and this seems to repel them nicely also works on gnats. Our pup doesn't have a reaction to it. Takes a good 24 hours to melt into his fur/skin, but other than that it works great.

## Frequently Bought Together

- Frontline Shield Flea & Tick Treatment for Medium Dogs 21-40 lbs. Count of 6
- Frontline Shield Flea & Tick Treatment for Large Dogs 41-80 lbs. Count of 6
- Frontline Shield Flea & Tick Treatment for Small Dogs 11-20 lbs. Count of 6

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-16*