Barrier Topical Solution for Dogs, 20.1-55 lbs, 6 Doses (6-mos. supply)

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Usually arrives in 3-5 days
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No interest if paid in full in 6 months on PayPal purchases of $149+. .

Medications ship separately. Delivery times may vary.

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

Instructions

FAQ

Learn More About Barrier From Our Team of Experts
4.6
Rated 4.6 out of 5 stars
35 Ratings

Customers Mention

Chewy identifies key considerations with the help of artificial intelligence and our veterinarians.

Ease of Use

90% Positive

Effectiveness

90% Positive

Ingredients

85% Positive

Long-Term Benefits

90% Positive

14 Customer Reviews



Always consult a veterinarian about your pet’s health needs. Customer reviews should not be used as medical advice.

Rated 5 out of 5 stars
By Madeleine on Aug 19, 2025

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).


Rated 5 out of 5 stars
By Leslie on Jan 7, 2026

Price

Works great, not a flea in sight!

Works great, not a flea in sight!


Rated 5 out of 5 stars
By Phyllis on Sep 10, 2025

Super Price !

Great price for effective product! Speedy delivery ..love Chewy!

Great price for effective product! Speedy delivery ..love Chewy!


Rated 2 out of 5 stars
By Safiyyah on Aug 12, 2025

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.


Rated 5 out of 5 stars
By Jennifer on Jul 4, 2025

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


Rated 5 out of 5 stars
By cyril on May 9, 2025

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.


Rated 5 out of 5 stars
By stephen on Jan 9, 2025

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


Rated 5 out of 5 stars
By DW on Feb 8, 2025

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.


Rated 5 out of 5 stars
By Sherry on Nov 13, 2024

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!!!


Rated 5 out of 5 stars
By William on Feb 5, 2025

Highly reccommeded by our Vet.

Easy to administer.

Easy to administer.