Tri-Heart Plus (Rx)

  • Prescription
  • Dogs
  • Preventive Health
Tri-Heart Plus (Rx)
Tri-Heart® Plus is a chewable, pork flavored tablet administered once a month to protect your dog from the threat of potentially deadly heartworm disease, it also controls against roundworms and hookworms when given every month.
Dogs six months of age and older should be tested for heartworm disease prior to being put on a preventive program and tested annually thereafter.
Total Price


($34.99 / unit)

Price Match Guarantee
Free Shipping
Get vet care and prescriptions, quickly and affordably from home
See how it works

Medication information

What is Tri-Heart Plus?

Tri-Heart® Plus is a chewable, monthly prescription medication that protects dogs from the threat of potentially deadly heartworm disease, plus controls roundworms and hookworms. It kills the heatwrom larvae before they reach your dog’s heart. 


These beef-flavored chews taste great so they can be given like a treat.

What does Tri-Heart Plus treat?

Tri-Heart Plus prevents heartworm disease. It also treats and controls roundworms and hookworms.

How is Tri-Heart Plus given?

Give Tri-Heart Plus to your pet orally once a month according to the instructions from your veterinarian. Most dogs like the taste, so these beef-flavored chewable tablets can be given like a treat.

Who is Tri-Heart Plus for?

Dogs and puppies 6 weeks of age and older

What are the active ingredients of Tri-Heart Plus?

The active ingredients of Tri-Heart Plus are ivermectin and pyrantel.

What are the possible side effects of Tri-Heart Plus?

The most common side effects of Tri-Heart Plus are depression, lethargy, vomiting, reduced appetite, dilated pupils, loss of coordination, staggering, convulsions, and excessive drooling.

How Dutch works

  • 1

    Pick a membership plan

    Choose an annual or monthly plan — starting from just $11/month.

  • 2

    Video chat with a vet today

    Pick a time and get care from a licensed vet from home.

  • 3

    Get prescriptions shipped free

    Your vet will customize a treatment plan to help your pet and we’ll ship it to you.

  • 4

    Get unlimited care & follow-ups

    Ask follow-up questions and get care for other health issues quickly online.

Annual members save $650 a year vs. other vets

  • Time to
    see a vet

  • Vet visit fee

  • Unlimited care
    for up to 5 pets

  • 24/7 video calls
    & messaging

  • Medication savings

  • Total annual savings

  • Less than 24 hours

  • FREE

  • Yes

  • Yes

  • 25% OFF

  • Save $650

other vets

  • 2 weeks

  • $100

  • No

  • No

  • No

  • $0