Barrier Topical Solution for Dogs, 9.1-20 lbs, 6 Doses (6-mos. supply)

Have a Chewy account?
Sign in to quickly add pet health details.
$35.74 First Time Autoship Price
this order
Save 35% (up to $20) today when you set up Autoship. 

$52.24 Autoship Price
(-5%) future orders
  • Keep saving 5% on every order
  • Never miss a dose with easy refills
  • Skip, change, or cancel anytime
$54.99 Chewy Price
($9.17 /ea)
Promo, Save 20% on first Rx order with code
Promo, Save 20% on first Rx order with code RX20

In Stock
FREE delivery
Usually arrives in 3-5 days
Prescription approval made easy
We’ll reach out to your vet clinic.

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 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
38 Ratings

Customers Mention

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

Ease of Use

85% Positive

Effectiveness

79% Positive

Ingredients

77% Positive

Long-Term Benefits

91% Positive

15 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 Jennifer on Jan 7, 2026

Great price. Arrives really fast.

This product has worked great for us for the past year.

This product has worked great for us for the past year.


Rated 4 out of 5 stars
By Alix on Dec 25, 2025

Barrier Flea, tick and parasite prevention

Like the price! Don like the fact it’s not natural.

Like the price! Don like the fact it’s not natural.


Rated 1 out of 5 stars
By Laura on May 22, 2025

This medicine doesn’t take care of fleas and I’m thinking it doesn’t cover heartworms . My dog is 11 and has taken heart guard advantage most all his years. I changed

This medicine doesn’t take care of fleas and I’m thinking it doesn’t cover heartworms . My dog is 11 and has taken heart guard advantage most all his years. I changed to this a year ago and he now has heartworms. When I bath him and his sister I’ve found several fleas when I didn’t before using Barrier! I’m very upset right now.


Rated 1 out of 5 stars
By Claudia on Nov 11, 2025

Does not work

Had my grommer over today and she found fleas!

Had my grommer over today and she found fleas!


Rated 5 out of 5 stars
By melanie on Jul 25, 2025

The way it works and the cost.

Price and the fact it keeps peaches flea free and heartworm free.

Price and the fact it keeps peaches flea free and heartworm free.


Rated 4 out of 5 stars
By Blane on Jul 23, 2025
Top 500 Contributor

Works good!

Easy to apply! Seems to be working for my mini dachshund.

Easy to apply! Seems to be working for my mini dachshund.


Rated 1 out of 5 stars
By Donald on May 2, 2025

Lost Insulin delivery.

Insulin for dog was never delivered. Had to purchase from Vet and re-order from Chewy’s. Very disappointed.

Insulin for dog was never delivered. Had to purchase from Vet and re-order from Chewy’s. Very disappointed.


Rated 5 out of 5 stars
By Velva on Sep 16, 2024

Bitty-Tine is now free of the flea infestations!

Within a few days she was experiencing some relief from fleas. Now today she is completely free. She has stopped the horrible scratching attacks. And she's a happy

Within a few days she was experiencing some relief from fleas. Now today she is completely free. She has stopped the horrible scratching attacks. And she's a happy girl now!!


Rated 5 out of 5 stars
By Ron on Feb 28, 2025

this stuff has worked for us for the past 15 yeARS

i LOVE Chewy. They always do us right!

i LOVE Chewy. They always do us right!


Rated 5 out of 5 stars
By Barb on Dec 24, 2024

Cost.

So easy to administer.

So easy to administer.