Barrier Topical Solution for Dogs, 20.1-55 lbs, 6 Doses (6-mos. supply)
Pet Weight:
Pet Weight:
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Shipping for Prescription Medications
Our pharmacy prepares and ships prescription medications separately to ensure proper handling.
Most prescriptions are delivered within 3-5 days.About This Item
Details
- Prevents heartworm disease
- Treats the circulating immature, first-stage larvae of the heartworm parasite
- Kills adult fleas and treats flea infestations
- Treats and controls hookworms, roundworms, and whipworms
- Treats and controls sarcoptic mange
Ingredients
Imidacloprid & Moxidectin
Instructions
Administer the entire contents of a single dose tube (or appropriate combination of tubes for cats over 18 lbs. and dogs over 110 lbs.) of Barrier® topically in accordance to the label directions. DOGS: The recommended minimal dose is 4.5 mg/lb (10.0 mg/kg) imidacloprid and 1.1 mg/lb (2.5 mg/kg) moxidectin based on body weight.
Between 4°C (39°F) and 25°C (77°F)
FAQ
Your veterinarian is best suited to discuss and recommend appropriate medications for your dog. It is important to discuss your pet's health history with your veterinarian so he/she can decide if Barrier® is right for your animal. Barrier® should not be used in sick, debilitated or underweight animals. Dogs should be tested for heartworm disease prior to giving Barrier®. If your dog tests positive for adult heartworms, your veterinarian can recommend appropriate treatment. If your dog is older than six months of age, your veterinarian may decide to test him/her for heartworm disease before prescribing Barrier®.
Your veterinarian will recommend the appropriate dose for your dog based on its body weight. Do not administer Barrier® to dogs younger than 7 weeks of age or weighing less than 3 lbs. Barrier® is available in a variety of dose sizes for dogs of different weights.
If you forget to apply a monthly dose of Barrier®, immediately apply Barrier®, resume monthly applications, and notify your veterinarian.
Contact your veterinarian if you administer more than the prescribed amount of Barrier®.
- Remove the Barrier® tube from its protective package.
- While holding the tube in an upright position, twist the cap to break the seal. The cap will remain on the tube.
- Barrier should be applied to the top of the neck between the base of the skull and the shoulder blades.
- Apply the tip of the Barrier® tube directly to the skin by parting the hair. Squeeze the tube firmly 3 to 4 times in one spot until it is empty. Keep the tube compressed on the final squeeze to avoid drawing liquid back into tube. Avoid contact between Barrier® and your fingers. Do not massage Barrier® into the skin. Do not apply when the haircoat is wet. Do not apply to broken skin. Stiff hair, clumping of hair, hair discoloration, or a slight powdery residue may be observed at the application site in some animals. These effects are usually temporary and do not affect the safety or effectiveness of the product.
Yes. Bathing or shampooing your pet 2 or more hours after application will not reduce Barrier’s ability to prevent heartworm disease. Waiting to bathe your pet for 24 hours after application with ensure optimal flea protection.

Customers Mention
Ease of Use
Effectiveness
Ingredients
Long-Term Benefits
14 Customer Reviews
Really good product
I’ve tried this for my dogs and cats for the last 6 months through my vet, and it works as well as other topical brands. And the price is AMAZING!! For 4 animals
I’ve tried this for my dogs and cats for the last 6 months through my vet, and it works as well as other topical brands. And the price is AMAZING!! For 4 animals we spend $180-$200 (6month prescriptions).
Price
Works great, not a flea in sight!
Works great, not a flea in sight!
Super Price !
Great price for effective product! Speedy delivery ..love Chewy!
Great price for effective product! Speedy delivery ..love Chewy!
Blue still scratching after the medicine application
Blue is still scratching I I apply another tube . To see if it stops the scratching.
Blue is still scratching I I apply another tube . To see if it stops the scratching.
Price
We were spending $16/mo at the vet. This way we get 6/mo for one price
We were spending $16/mo at the vet. This way we get 6/mo for one price
Price
Same quality brand previously purchased from Vets office with a significant savings.
Same quality brand previously purchased from Vets office with a significant savings.
No more heartworms
Not sure if it’s a fluke. Even after fast kill treatment my dog was positive for heart worms. Was on preventative for months and kept being positive. Fluke? Maybe
Not sure if it’s a fluke. Even after fast kill treatment my dog was positive for heart worms. Was on preventative for months and kept being positive. Fluke? Maybe. But the 2nd month on the off brand tested negative
It works. Shipped quickly.
It works. We've been using it a couple of years.
It works. We've been using it a couple of years.
How fast these products arrived.
How everything was in perfect condition and no boxes were crushed upon arrival. Thank you so much!!!
How everything was in perfect condition and no boxes were crushed upon arrival. Thank you so much!!!
Highly reccommeded by our Vet.
Easy to administer.
Easy to administer.