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Sentinel Flavor Tabs for Dogs, 26-50 lbs, (Yellow Box), 6 Tablets (6-mos. supply)

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$63.99 Autoship Price
  • Never miss a dose with easy refills
  • Skip, change, or cancel anytime
$63.99 Chewy Price
($10.67 /ea)
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

  • Protects against 5 different kinds of parasites.
  • Unique to SENTINEL brand products, lufenuron prevents flea eggs from hatching.
  • Protects against heartworms, hookworms, roundworms, and whipworms.
  • SENTINEL FLAVOR TABS does all this with a once-a-month pork, liver-flavored tablets dogs love.

Ingredients

Instructions

FAQ

Learn More About Sentinel From Our Team of Experts

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Reviews
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4.8
Rated 4.8 out of 5 stars
1587 Ratings
Terms & Conditions

Customers Mention

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

Ease of Use

95% Positive

Effectiveness

94% Positive

Ingredients

93% Positive

Long-Term Benefits

95% Positive

487 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 Rachel on Jul 13, 2020

Best preventative!

I am a psycho about good preventatives, and after a horrible experience with Trifexis for my previous large dogs (they both refused to just chew the tablet, would

I am a psycho about good preventatives, and after a horrible experience with Trifexis for my previous large dogs (they both refused to just chew the tablet, would often vomit after taking it, and then one of the dogs still developed heartworms) and hearing equally terrible things about HeartGard, I chose Sentinel for my current dog. We have been using it for a year and I am so happy with it! My dog eats the tablet like it’s candy. He is outdoors, in the woods, on the farm, around other dogs, and travels often and we haven’t had a single worm or flea issue (I do use a topical flea and tick during the summer, but feel comfortable without it during cold months). I am also happy with the price compared to other preventatives! This is an excellent product and I plan to continue using it!

By Rachel on Jul 13, 2020
Rated 5 out of 5 stars
By Thea on Mar 16, 2020

Great Product, Great Service

We have two Australian shepherds one of them has the gene disorder that causes seizures/toxicity in the brain when he takes certain medications. One of the toxic

We have two Australian shepherds one of them has the gene disorder that causes seizures/toxicity in the brain when he takes certain medications. One of the toxic meds for him is Trifexis but thankfully he can take Sentinel tablets! We never miss a month because we love our fur babies and would never want to risk them having heart worms. We love that this Sentinel covers some internal parasites also, keeps our mind a little at ease knowing they’re protected from multiple icky things. We will forever buy sentinel for our aussies and we love the ease of ordering from Chewy (they will contact the vet with the prescription approval form). Thanks Chewy for helping protect our babies!!!

By Thea on Mar 16, 2020
Rated 5 out of 5 stars
By Nathinee on Mar 22, 2024

Exceptional Customer Service (Thanks to Randall)

I had had a couple of phone interactions that made me want to cancel my Chewy account, but then I was patched through to Randall in the Chewy pharmacy, who listened

I had had a couple of phone interactions that made me want to cancel my Chewy account, but then I was patched through to Randall in the Chewy pharmacy, who listened to me, talked me down, and turned around my entire frame of mind, while also rescuing my relationship with Chewy. Randall, who clearly embodies the company values (I honestly started that call thinking there weren’t any), did an amazing job of communicating those values while solving my issue. Even if he hadn’t been able to resolve it, I still would have finished that call thinking better of the company and assuming, based on Randall, that the company is all heart, that my experiences with reps prior to Randall were outliers, and that Chewy really does care for its customers. Randall should be training every single customer representative at Chewy. He is your gold standard and you should clone him, by promoting him and letting him lead others.

By Nathinee on Mar 22, 2024
Rated 5 out of 5 stars
By Coach on Oct 3, 2019

Sentinel Heart Worm Tabs

Not sure how much of a review I can give since I do not take these tabs. Maybe I should ask Armani for his input here. All I know is he gets one every month and

Not sure how much of a review I can give since I do not take these tabs. Maybe I should ask Armani for his input here. All I know is he gets one every month and when he does he doesn't even chew it. Just swallows. They appear to work since the vet hasn't said he has heart worm. I do wish we could get 12 at a time but I suppose there is a shelf-life limitation.

By Coach on Oct 3, 2019
Rated 5 out of 5 stars
By MASMom on Mar 22, 2023

Love Getting Sentinel From Chewy

We have four Miniature American Shepherds and that breed does not do well on all the fancy combo drugs and shots. Simple is best. Grateful Chewy carries Sentinel

We have four Miniature American Shepherds and that breed does not do well on all the fancy combo drugs and shots. Simple is best. Grateful Chewy carries Sentinel. Sentinel has been a go to for Aussies and our MAS crew.

By MASMom on Mar 22, 2023
Rated 5 out of 5 stars
By Tina on Jun 12, 2024

Sentinel Flavor Tabs for 12 years and Chewy to the rescue

My dogs have been getting Sentinel Flavor Tabs for 12 yrs, it has been a charm. It protects against many other worms besides heartworm, more than a lot of other

My dogs have been getting Sentinel Flavor Tabs for 12 yrs, it has been a charm. It protects against many other worms besides heartworm, more than a lot of other brands. An order for it recently with my vet's pharmacy bombed out. The vet was suddenly no longer connected to that pharmacy. Almost a week went by when I found out the order didn't go through. I had at most, 9 days to get this med on time for the next dose. Chewy said they have a 3-5 business day shipping schedule. I took a chance and Chewy saved the day. I received it very quickly and I'm ahead of schedule.

By Tina on Jun 12, 2024
Rated 5 out of 5 stars
By Kelly on Dec 14, 2024

Great Brand!!!

We've been this brand of heartworm prevention for many years for all of our past and present dogs. We never had an issue with Sentinel. I would highly recommend

We've been this brand of heartworm prevention for many years for all of our past and present dogs. We never had an issue with Sentinel. I would highly recommend using this particular product to any one that ask for a recommendation on heartworm prevention. Been using Sentinel on our dogs for over 30 years now.

By Kelly on Dec 14, 2024
Rated 5 out of 5 stars
By Christine on Nov 28, 2023

So very thankful

Our loving dog Frazier was put to sleep 13OCT. I has ordered heart worm pills for him but of course he didn’t need them, I called Chewy and Sharon was so compassionate

Our loving dog Frazier was put to sleep 13OCT. I has ordered heart worm pills for him but of course he didn’t need them, I called Chewy and Sharon was so compassionate and caring about our loss. Sharon not only sent me a refund but some beautiful flowers. I cant tell you how much it meant to us.. Frazier is sorely missed but PLEASE continue to shine a little light in the world. It makes a difference..Thank you ..

By Christine on Nov 28, 2023
Rated 3 out of 5 stars
By Kathy on Oct 18, 2025

The sentinel itself is great but..

I would’ve gave five stars if they had a better system for getting prescriptions to them. My vet will not fax anything so I need to go the prescription and then

I would’ve gave five stars if they had a better system for getting prescriptions to them. My vet will not fax anything so I need to go the prescription and then send it through the mail which takes forever for chewy to get it and acknowledge that they got it.

By Kathy on Oct 18, 2025
Rated 5 out of 5 stars
By Julio on Dec 15, 2024

Staying Healthy

He’s twelve years old and slowing down. He is our emotionally needy dog. Our local vet recommended Chewy to fill the script rather than filling in the office.

He’s twelve years old and slowing down. He is our emotionally needy dog. Our local vet recommended Chewy to fill the script rather than filling in the office.

By Julio on Dec 15, 2024