Sentinel Tablet for Dogs, 2-10 lbs, (Brown Box)

By Sentinel
Rated 4.7059 out of 5 stars
Prescription Item

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$48.99Chewy Price

In Stock
FREE delivery
Usually arrives in 3-5 days
We'll collect your pet's prescription information at Checkout.

This item requires prescription approval.

Medications ship separately. Delivery times may vary.

Frequently Bought Together

Total Price: $175.96

About This Item


Your furry friend must have a current heartworm test result on file with your veterinarian in order to be prescribed heartworm medication. Please visit your veterinarian to have this test performed annually to protect your four-legged friend. Sentinel is a monthly oral preventive prescription that guards against heartworms, adult roundworms, adult hookworms, whipworms, and prevents the development of flea eggs. It protects your dog against heartworm disease and intestinal worms, all in a palatable, flavored tablet.

Proudly sourced directly from the manufacturer or their approved distributor. Guaranteed genuine and backed by the manufacturer.

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Play Video: Learn More About Sentinel From Our Team of Experts
Learn More About Sentinel From Our Team of Experts

ReviewsWrite a Review

Rated 4.7059 out of 5 stars
85 Ratings
Would recommend to a friend

82 Customer Reviews

Always consult a veterinarian about your pet’s health needs. Customer reviews should not be used as medical advice.
Rated 1 out of 5 stars
By MG on Jun 1, 2023

Hate the side affects

My dachshunds lost so much hair over time. My old vet and I tried a bunch of different things. Family members were noticing that my dachshunds were almost bald on belly, head, butt, and chest while my family member's dachshunds had normal hair. Even checking with the family that has the parents of my pups, their dogs all had normal dachshund hair and never any hair loss. Then I started taking my pups to a new vet and she stated that the hair loss/thinning is probably from Sentinel. She switched us to a different medicine & within 2 months they are back to having hair and continually getting better and better. I feel so bad because I had been using Sentinel for years and causing my pups to be hairless. I have used a different medicine for 6 months now and it is a night and day difference for my pups hair.

Rated 5 out of 5 stars
By Nitah57 on Jul 11, 2023

My go to for pet products!

I have been a customer for over 5 yrs. Paused due to the loss of my pet’s. I just welcomed my new fur-baby this year. Hi Chewy, I’m back. Thank you for your support and your team’s efforts in helping me at any given moment.

Rated 5 out of 5 stars
By Carol on Jun 3, 2023

Quick, Easy and Economical!

I have been using Sentinel Heartworm and Flea medicine for my toy poodles for almost 19 years. My vet no longer carried it and wanted us to spend almost $300 on something new. You made it so easy to order from you!

Rated 5 out of 5 stars
By Dogs on Mar 29, 2023

Service from Chewy's Pharmacy

Have been ordering my "babies" Sentinel for quite some time from Chewy's Pharmacy, such a nice organization to work with. Always prompt & courteous. Even will refund the cost of priority mail if you send it that way--no worries.

Rated 5 out of 5 stars
By Mary on Sep 19, 2023

Great service

The meds we have always use for our dogs

Rated 5 out of 5 stars
By Coachk50 on May 24, 2023

Chewy Pharmacy great as always

Excellent service as always. There was a error on my part but the pharmacist I spoke with helped clear the issue.

Rated 5 out of 5 stars
By Codyspack on May 31, 2023

Super simple

Easy transaction, quick shipping This is the only one I can get down my Yorkie

Rated 5 out of 5 stars
By PamV on Mar 22, 2023

Great item

I used to give my previous dog Sentinel all the time. With our new dog we were using something different but it became too expensive. Sentinel is a good price.

Rated 5 out of 5 stars
By SouthGaGirl90 on Jul 16, 2023

Great product

Very easy to give my baby girl.

Rated 5 out of 5 stars
By Agent on Apr 25, 2023

prices are great

This was at great price. My vet charges double or more.