Barrier Topical Solution for Dogs, 3-9 lbs, 6 Doses (6-mos. supply)
Keep saving 5% on every order
Never miss a dose with easy refills
Skip, change, or cancel anytime
No Interest if paid in full in 6 months on PayPal purchases of $149+. .
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, 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
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.

5 Customer Reviews
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.
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!
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
Works great
Treated hook worms fast
Treated hook worms fast
On time
Cost me less
Cost me less