--- product_id: 291601198 title: "Shield Flea & Tick Treatment for Medium Dogs 21-40 lbs. Count of 6" brand: "frontline" price: "฿9922" currency: THB in_stock: true reviews_count: 8 category: "Frontline" url: https://www.desertcart.co.th/products/291601198-shield-flea-and-tick-treatment-for-medium-dogs-21-40 store_origin: TH region: Thailand --- # Kills fleas, eggs & larvae Repels ticks & mosquitoes 30-day waterproof protection Shield Flea & Tick Treatment for Medium Dogs 21-40 lbs. Count of 6 **Brand:** frontline **Price:** ฿9922 **Availability:** ✅ In Stock ## Summary > 🦴 Shield your best friend, rain or shine — 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?** ฿9922 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/291601198-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 - • **All-Weather Defense:** Waterproof formula keeps protection active even after swims or baths for a full 30 days. - • **Puppy-Friendly Protection:** Safe and effective for puppies as young as 9 weeks and weighing 5+ pounds, so your whole pack stays safe. - • **Effortless Monthly Routine:** Simple topical application with subscription options to never miss a dose and keep your dog protected year-round. - • **Fast-Acting & Long-Lasting:** Rapidly spreads through sebaceous glands for continuous protection without greasy residue. - • **Comprehensive Parasite Control:** Eliminates fleas at every life stage plus repels ticks that may carry Lyme disease and mosquitoes linked to heartworm. ## Overview FRONTLINE Shield Flea & Tick Treatment offers medium dogs (21-40 lbs) a fast-acting, waterproof, and 30-day long protection against fleas, ticks (including Lyme disease carriers), mosquitoes, and chewing lice. Safe for puppies 9 weeks and older, this topical treatment continuously replenishes through the skin’s sebaceous glands, ensuring all-around defense during indoor and outdoor adventures. ## 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: Great product! - 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 on time - 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 | | ASIN | B08P3BJ7CB | | Age Range Description | All Life Stages | | Best Sellers Rank | #64,887 in Pet Supplies ( See Top 100 in Pet Supplies ) #140 in Dog Flea Drops | | Brand Name | Frontline | | Breed Recommendation | Medium | | Color | Blue Box | | Customer Reviews | 4.2 4.2 out of 5 stars (139) | | Date First Available | November 23, 2020 | | Date First Available | November 23, 2020 | | Directions | 1. To REMOVE Applicator: Prior to open separate one blister by tearing along perforation. 2. TO OPEN, use scissors to cut along dotted line of single blister, then pull apart foil and remove the applicator. OR fold on line at corner, tear and open at slit and remove the applicator. 3. HOLD Applicator Upright away from you and your dog’s face, cut applicator tip with scissors to open. Do not get pr… | | Included Components | Treatment | | Item Dimensions LxWxH | 1.48 x 5.8 x 4.39 inches | | Item Package Dimensions L x W x H | 5.79 x 4.49 x 1.54 inches | | Item Weight | 1.76 ounces | | Item model number | 854 | | Item model number | 854 | | Manufacturer | Boehringer Ingelheim Animal Health | | Manufacturer | Boehringer Ingelheim Animal Health | | Manufacturer recommended age | 1 month and up | | Model Name | Frontline Shield | | Number of Items | 6 | | Product Dimensions | 1.48 x 5.8 x 4.39 inches; 1.76 ounces | | Size | 6 Count | | Specific Uses for Product | Parasites | | Target Audience Keyword | dogs | | Warranty Description | Contact the manufacturer. | ## Product Details - **Active Ingredients:** Fipronil, Permethrin, Pyriproxyfen - **Age Range (Description):** All Life Stages - **Allergen Information:** Octopus Free - **Brand:** Frontline - **Dog Breed Size:** Medium - **Item Form:** Stick - **Item Volume:** 12 Milliliters - **Scent:** Unscented - **UPC:** 350604064947 ## 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 ### ⭐⭐⭐⭐⭐ Great product! *by V***P on January 1, 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. ### ⭐⭐⭐⭐⭐ Came on time *by A***R on December 13, 2025* Came as advertised ### ⭐⭐⭐⭐⭐ Works *by S***R on July 6, 2025* No negative reactions from Lola and I haven’t seen a glee or tick ## 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 --- ## 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.co.th/products/291601198-shield-flea-and-tick-treatment-for-medium-dogs-21-40](https://www.desertcart.co.th/products/291601198-shield-flea-and-tick-treatment-for-medium-dogs-21-40) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-04-23*