Tri-Heart Plus Chewable Tablet for Dogs, up to 25 lbs, (Blue Box)

By Tri-Heart Plus
Rated 4.6591 out of 5 stars
Prescription Item

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$22.99Chewy Price
In Stock
FREE delivery on first-time orders over $35
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.

About This Item


For use in animals only. 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. Tri-Heart Plus is an easy-to-feed chewable tablet prescribed to help keep your dog free of heartworm and other dangerous parasites. When given monthly, this simple and palatable tablet helps to protect your pet by killing the larvae before they reach your dog's heart. Best of all, the tasty tablets can be fed just like a treat! Your pet won't even know you're working to protect their heart.

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 Tri-Heart Plus From Our Team of Experts
Learn More About Tri-Heart Plus From Our Team of Experts

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ReviewsWrite a Review

Rated 4.6591 out of 5 stars
352 Ratings
Would recommend to a friend

323 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 Timesh on Oct 3, 2023

Almost killed my dog!

I tried to give it a zero but it wouldn't let me. This product, a long with flea meds, can be extremely harmful to any living being! Think about it, pesticides, kill. My dog began panting heavily, got dilated pupils, started losing control of his bowels, and lost ability to stand. It didn't happen with the first dosage, but did with the second. It can build in there body and become extremely toxic. Please research flea meds and ivermectin (heart worm meds) and what they can do to your animal before deciding to give them to your animal!

Rated 5 out of 5 stars
By Diane on Nov 7, 2023

Chewy is amazing

I'm not going to review this particular product, but rather chewy as a company. Unfortunately I've had to reach out to them for two different pets over the course of 3 weeks. The customer service reps were outstanding, the company is amazing. A++++++ to deal with. Thank you Chewy.

Rated 1 out of 5 stars
By Jennifer on Nov 12, 2023

Bad experience with the product

My dog had an adverse reaction to the second dose of this product 24 hrs later she was never suffer a minor seizure before until I gave her this product it was a really scary experience will neve buy again..chewy customer service was excellent and helpful

Rated 5 out of 5 stars
By Carolyn on Nov 10, 2023

A+ Service from Chewy

Chewy contacted my vet about this prescription med for my new pup. Quick service at a good price. Will continue to use Chewy for future canine prescriptions.

Rated 2 out of 5 stars
By WILLIAM on Nov 21, 2023

Half the order was canceled without reason.

Half the order was canceled without reason. I reordered the missing items and the second order went through completely.

Rated 5 out of 5 stars
By Bruce on Nov 17, 2023

Heart protection for our puppy

I appreciate the helpful and courteous Team at Chewy. They came though for us with this order. And it was delivered quickly.

Rated 5 out of 5 stars
By Tom on Aug 14, 2023

Couldn’t be more pleased

Started buying dog food several years ago. Now ordering dog medication which is a little more complicated and has worked very with ease of ordering and fast delivery. Best of all has always been the excellent customer service, always on the phone, from helpful, knowledgeable, friendly, and easy to understand representatives that provide accurate information and directions that work.

Rated 3 out of 5 stars
By Mary on Nov 7, 2023

Not for my dog

My dog will not eat these no matter what I try to hide it in. So much for saving money. Will go back to HeartGuard.

Rated 5 out of 5 stars
By Sue on Nov 16, 2023

Seems to work just like the expensive one!

Used over 5 years and never had any postive test for heartworm. Just think of the money saved!

Rated 5 out of 5 stars
By MLisa on Sep 5, 2023

Good price and convenient

Our vet put our dogs on this medicine and I appreciate that Chewy lets me order the very same product on-line with the convenience of home delivery. Saves me a trip to the vet and it's the same price.