Barrier Topical Solution for Dogs, 3-9 lbs, 6 Doses (6-mos. supply)

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Usually arrives in 3-5 days
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Medications ship separately. Delivery times may vary.

About This Item

Details

  • Prevents heartworm disease
  • Treats the circulating immature, fisrt-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
5.0
Rated 5 out of 5 stars
26 Ratings

5 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
Verified Purchase
By Maria on Feb 5, 2026

For a small dog with seizures

I have a little 8lb Yorkie with seizures. I used other products over the years without good results. I went on a long stretch (years) without using anything at all

I have a little 8lb Yorkie with seizures. I used other products over the years without good results. I went on a long stretch (years) without using anything at all and being extra careful. My new veterinarian suggested to try Advantage Multi because she had good results with other dogs with seizures. I was very nervous to try this, but my Yorkie never had any adverse reaction. I decided to buy Barrier because it’s same ingredients but cheaper. So far so good. I do wish it would have a wide spectrum coverage for thicks as well.


Rated 5 out of 5 stars
Verified Purchase
By Jolynn on Sep 12, 2025

Quick shipment

So far, I can say no fleas or ticks! But as to the staff at Chewy, they are amazing and we’re so caring when we had babies cross the Rainbow Bridge!

So far, I can say no fleas or ticks! But as to the staff at Chewy, they are amazing and we’re so caring when we had babies cross the Rainbow Bridge!


Rated 5 out of 5 stars
Verified Purchase
By Doreen on Aug 7, 2026

Chewy had what I needed and was delivered quickly.

Rudi and Tess can play outside and I don't have to worry about fleas.great job from Chewy and I will be ordering again. Thanks

Rudi and Tess can play outside and I don't have to worry about fleas.great job from Chewy and I will be ordering again. Thanks


Rated 5 out of 5 stars
Verified Purchase
By star on Oct 14, 2025

Works great

Treated hook worms fast

Treated hook worms fast


Rated 5 out of 5 stars
Verified Purchase
By Carol on Apr 13, 2025

On time

Cost me less

Cost me less