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Barrier Topical Solution for Cats and Ferrets 5.1-9 lbs, (Orange)

$10.99

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Prescription Required

Aurora Pharmaceutical SKU: 5107210102-1

Size (Dose): 1 Dose (1-mos. supply)
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Barrier Topical Solution for Cats and Ferrets 5.1-9 lbs

Complete Parasite Defense with Imidacloprid and Moxidectin

Barrier Topical Solution 5.1–9 lbs is a veterinarian-approved, broad-spectrum parasiticide designed for cats and ferrets. Powered by imidacloprid and moxidectin, it delivers once-a-month protection against a wide range of parasites—both internal and external.

This fast-acting formula:

  • Kills adult fleas
  • Prevents heartworm disease
  • Treats and controls intestinal parasites (hookworms, roundworms)
  • Eliminates ear mites

Barrier is FDA-approved for use in:

  • Cats weighing 5.1–9 lbs and over 9 weeks of age
  • Ferrets weighing at least 2 lbs

Its topical application ensures easy administration and reliable coverage—a vital solution for pet parents seeking a multi-parasite preventive with proven efficacy.

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 Weight Ranges

Barrier Topical Solution for Cats is available in multiple strengths to provide accurate dosing based on your cat's weight. Selecting the correct variant ensures safe and effective parasite protection.

What Are the Benefits of Barrier for Cats and Ferrets 5.1–9 lbs?

  • Comprehensive parasite protection in a single monthly dose
  • Kills fleas and breaks the flea lifecycle
  • Prevents heartworm disease caused by Dirofilaria immitis
  • Treats ear mites, hookworms, and roundworms
  • Safe for ferrets weighing at least 2 lbs
  • Easy-to-apply topical solution—no pills required
  • Water-resistant after application
  • Approved by the FDA under ANADA #200-714

Barrier combines two potent ingredients:

  • Imidacloprid (targets flea nervous system)
  • Moxidectin (kills larval and adult stages of worms)

How Do You Apply Barrier to Cats and Ferrets? (Directions for Use)

Follow the proper application steps for maximum effectiveness:

  1. Remove the tube from its foil pouch.
  2. Hold the tube upright and twist off the cap.
  3. For cats: Part the fur at the base of the neck and apply the entire contents directly on the skin.
  4. For ferrets: Apply to the skin between the shoulder blades.
  5. Ensure the pet does not lick the site until dry.

Note: Children should not contact the application site for at least 30 minutes post-treatment.

What Ingredients Are in Barrier Topical Solution?

Active Ingredient

Concentration

Function

Imidacloprid

40 mg

Flea adulticide; paralyzes fleas by targeting the nervous system

Moxidectin

4 mg

Anthelmintic and heartworm preventive; disrupts nerve transmission in worms

These two active ingredients work synergistically for multi-pathogen protection in both cats and ferrets.

What Are the Potential Side Effects in Cats or Ferrets?

Most animals tolerate Barrier well, but side effects may include:

  • Mild skin irritation at application site
  • Temporary lethargy or behavioral changes
  • Hypersalivation if ingested during grooming
  • Gastrointestinal upset (rare)

If your pet shows signs of adverse reactions such as trembling, uncoordinated movement, or vomiting, seek veterinary help promptly.

What Safety Precautions Should Pet Owners Follow?

  • Only apply to cats 5.1–9 lbs and ferrets ≥2 lbs
  • Do not use on kittens under 9 weeks of age
  • Avoid contact with eyes, mouth, or open wounds
  • Separate treated pets from others until dry
  • Wash hands after application
  • Store in original packaging, away from children and pets

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 Cats & Ferrets FAQs

What is Barrier Topical Solution used for?

Barrier prevents heartworms and controls fleas, ear mites, hookworms, and roundworms in cats and ferrets with monthly topical use of imidacloprid and moxidectin.

Is Barrier safe for ferrets?

Yes, Barrier is FDA-approved for ferrets weighing at least 2 lbs. It treats fleas, ear mites, and intestinal worms in ferrets with a single application.

Can cats and ferrets groom each other after application?

Avoid allowing pets to groom each other for 30 minutes post-application to prevent ingestion of the medication.

How long does Barrier take to work?

Fleas begin dying within 12 hours. Full parasite protection—including worms and mites—lasts for 30 days.

How often should I apply Barrier?

Apply Barrier once every 30 days. Regular, consistent use is crucial to maintain protection.

Additional Reading & Medical Resources