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At a Glance
Tri Heart Plus protects your dog from heartworms, roundworms, and hookworms
Taken once a month
Safe to take all year round
Beef-flavored chewable tablets
This product requires a prescription.

Tri-Heart Plus

Our Price

Pet Size
Don't know your pet's weight?
If you can't get them on the scale, try this super simple method:

1) Weigh yourself.
2) Weigh yourself holding your pet.
3)Subtract the two numbers to get their weight.

Too heavy to hold? Your vet will weigh them if you ask (or may already have it on file if you call).
Supply For
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How To Order Prescriptions Online

  • 1

    Find the right product

    Make sure it matches your pets prescription. Don't forget to compare the dosage for pills/capsules!

  • 2

    Add to Cart

    Just like any other online store. Make sure the quantity matches what's been prescribed by your veterinarian.

  • 3

    Tell us about your pet and vet

    Answer some questions during checkout and we'll contact your vet and verify the prescription for you. (you can also mail us the written prescription)

  • 4

    That's It!

    If the prescription has any refills, processing your future orders for that medication can be expedited.

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Rated 4.5 out of 5 by 52 reviewers.
Rated 5 out of 5by easy and effective!!easy and effective!! 11/06/2018
Rated 5 out of 5by Works For Us!!!The packaging is really easy to handle. The design is welcoming. The pill packaging is weather resistant, easy to open, and safe. The pill is a bit large, but very easy to cut with the pill cutter. My dog took years to adapt to the flavor, but we no longer have to use the pill pockets. He eats it with ease now. This product has been used for over 6 years and works very well with our breed. I would definitely recommend to other pet owners for protection. 09/17/2018
Rated 5 out of 5by It works and has no side affectsGiven the first of each month there have never been any side affects. 04/13/2018
Rated 1 out of 5by Not worth itI tried this product because it was less expensive and I like to try generic options, but my dog did not like it. She loves Heartgard and Nexguard but this she would NOT eat! It stinks and not worth the hassle! 04/11/2018
Rated 5 out of 5by Effective Product recommended by vet.No side effects experienced with product and recommended by her vet. 03/23/2018
Rated 5 out of 5by Excellent productTri-Heart Plus has worked wonderfully for my pup. I have been using the brand consistently since she was a pup. PetCareRx offers fast and easy shipping. 02/06/2018
Rated 5 out of 5by Affordable and effortless!This is a cheaper version of heartguard that works just as good! My dog loved the chewable tab as its just like a regular treat. easy to give and it seems to be effective. 12/30/2017
Rated 1 out of 5by NOT chewable, my dog will NOT take!This product claims to be exactly like Heartgard Plus and "Flavored like beef, your dog wont even know they are taking medicine!" THIS IS NOT TRUE! It comes in the form of a very hard pill that is almost impossible for his small mouth to chew! He spits it out and does NOT want to take. Do NOT waste your money on this! 10/02/2017
Rated 5 out of 5by GOT A BIG DOG FAMILY? PERFECT!!!!! I am so thankful for PetCare RX! Recently one of babies was treated for heartworms and may I just say how horrible this DISEASE is!!! The treatment is very PAINFUL and there are no guarantees for full recovery... THANKFULLY my baby survived and is now heartworm free! We have 4 babies and buying this at our Vet is crazy expensive! So, thank you again PetCare RX, I sleep better now. 07/13/2016
Rated 5 out of 5by A great alternative My dog ate this without hesitation. I will be using this product from now on as it is cheaper than others and is effective as a prevention for more than just heart worm. 07/09/2016
Rated 1 out of 5by Not what I was led to think Disappointed thought they were chewable won't order these again said they were the same as brand name 06/14/2016
Rated 5 out of 5by Great productTri Heart Plus is a great affordable product that gives me peace of mind for my 3 cocker spaniels. 05/18/2016
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