Barrier Topical Solution for Dogs, 55.1-88 lbs, (Blue)

Barrier Topical Solution for Dogs 55.1–88 lbs, 6-Month Supply

(Imidacloprid + Moxidectin)

Barrier Topical Solution for Dogs 55.1–88 lbs is a once-a-month topical parasiticide formulated with Imidacloprid 10% and Moxidectin 2.5%. Specially designed for medium-to-large dogs between 55.1–88 lbs, this solution offers broad-spectrum protection against fleas, heartworm disease, roundworms, hookworms, whipworms, and sarcoptic mange.

Unlike traditional flea-only treatments, Barrier targets both external and internal parasites, making it a powerful multi-parasite preventive trusted by veterinarians. With six pre-measured doses per box, this 6-month supply ensures consistent monthly protection with easy topical application.

Prescription items are NON-RETURNABLE and NON-REFUNDABLE.

NOTE: For generic medications, the product image shown may not reflect the actual item received. Generic medications can vary in size, color, and shape between orders depending on the manufacturer. Additionally, your medication may arrive packaged in a HardyPaw Pharmacy vial.

Also Available in Other Dog Weight Ranges

Barrier for Dogs is formulated in multiple strengths to ensure precise and safe dosing for dogs of all sizes. Always choose the variant that matches your dog’s current weight for maximum efficacy and safety.

• Barrier for Dogs 3–9 lbs – Green: Perfect for toy breeds and small puppies over 7 weeks of age.
• Barrier for Dogs 9.1–20 lbs – Ice Blue: Designed for small to medium-sized dogs needing monthly parasite protection.
• Barrier for Dogs 20.1–55 lbs – Pink: Ideal for medium to large breeds prone to fleas and worms.
• Barrier for Dogs 88.1–110 lbs – Yellow: Formulated for extra-large dogs with higher weight-based dosing needs.

What Are the Benefits of Barrier Topical Solution for Dogs 55.1–88 lbs?

• Prevents Deadly Heartworm Disease: Contains Moxidectin, a potent macrocyclic lactone that protects against Dirofilaria immitis, the parasite responsible for heartworm disease.
• Kills Adult Fleas Quickly: Imidacloprid acts on the nervous system of fleas, killing them on contact and reducing flea-related skin conditions like flea allergy dermatitis (FAD).
• Treats and Controls Intestinal Worms: Effective against roundworms, hookworms, and whipworms, helping manage common internal parasites in dogs.
• Treats Sarcoptic Mange & Chewing Lice: Controls Sarcoptes scabiei, a mite that causes intense itching and skin lesions.
• Waterproof Formula: Remains effective even after swimming or bathing (after 24 hours of application).
• Vet-Approved Multi-Parasite Solution: FDA-approved under ANADA #200-718, ensuring safety and efficacy.

How Do I Apply Barrier Topical for Dogs 55.1–88 lbs? (Directions for Use)

1. Remove one tube from the 6-pack.
2. Hold tube upright and twist cap to open.
3. Part your dog’s hair at the base of the neck (between shoulder blades).
4. Apply entire contents directly on the skin in one or two spots.
5. Avoid petting the application site until dry.
6. Repeat every 30 days for continuous protection.

What Ingredients Are in Barrier for Dogs 55.1–88 lbs?

Imidacloprid is a neonicotinoid insecticide affecting nerve signals in fleas.
Moxidectin is a macrocyclic lactone that paralyzes and kills internal worms and mites.

What Are the Side Effects of Barrier Topical Solution?

While most dogs tolerate the product well, some may experience:

• Mild skin irritation at application site
• Lethargy or decreased appetite
• Vomiting or drooling (if ingested or groomed)
• Neurological signs in rare cases (especially in herding breeds with MDR1 mutation)

If side effects occur, consult your veterinarian immediately.

What Precautions Should I Take Before Using Barrier?

• For dogs only weighing 55.1–88 lbs and over 7 weeks of age
• Do not use on cats – Imidacloprid and Moxidectin are toxic to felines
• Do not administer orally – topical use only
• Avoid contact with pet's mouth, eyes, and broken skin
• Keep out of reach of children and other animals

What Does the Package Include?

Shipping & Returns 

Shipping Policy: HardyPaw offer all types of shipping options (Ground, Express, Priority, International) depending on the urgency of the product requirements. To know about our shipping policy in detail, click here.

Refund policy: If you face any issue with our product and want to return it, read our refund policy carefully.

Barrier for Dogs 55.1–88 lbs FAQs

What is Barrier for Dogs 55.1–88 lbs used for?

Barrier is used to prevent heartworm, treat flea infestations, and control intestinal worms and sarcoptic mange in dogs.

How often should I apply Barrier Topical Solution?

Apply once every 30 days for uninterrupted protection against parasites.

Can I bathe my dog after applying Barrier?

Yes, but wait at least 24 hours after application for full absorption and waterproof protection.

Is this product safe for all dog breeds?

Yes, but consult your vet before using in herding breeds (e.g., Collies) that may carry the MDR1 gene mutation sensitive to Moxidectin.

Can I use Barrier with other medications?

Check with your veterinarian before combining Barrier with other internal parasite preventives, antibiotics, or flea treatments.

Trusted Medical References

• Imidacloprid – NPIC (National Pesticide Information Center):
• Dirofilaria immitis (Heartworm) – University of Saskatchewan (WCVM)
• Moxidectin – ScienceDirect
• Sarcoptic Mange – VCA Animal Hospitals