How to Administer Tri-Heart Plus for Dogs
By Pet Health Supplies Delivered to Your Door. — PETRX.com | Published: 2026-10-24
Category: How-to Guides
Learn the correct way to give your dog Tri-Heart Plus chewable tablets for heartworm, hookworm, and roundworm prevention. Step-by-step process included.
Quick answer
Give Tri-Heart Plus once a month as a chewable tablet. Ensure your dog eats the entire dose, and use the correct weight-based strength. Follow the steps below for smooth administration.
Why correct administration matters
Tri-Heart Plus prevents heartworm disease and controls hookworms and roundworms. Missing a dose or giving the wrong strength can leave your dog unprotected. The tablet is beef-flavored, so most dogs take it willingly, but you still need to confirm they swallow it completely.
Choosing the right strength
Tri-Heart Plus comes in three dosage strengths based on your dog's weight. Weigh your dog before ordering and pick the size that matches. Giving too little may not prevent heartworm; too much can cause side effects.
Step-by-step administration guide
- Step 1: Confirm the correct strength: Check your dog's current weight. Use only the Tri-Heart Plus strength that matches that weight. The tablet is chewable and beef-flavored. Weigh your dog every few months; weight changes require a different strength.
- Step 2: Offer the tablet directly or with food: Most dogs take Tri-Heart Plus as a treat because of the beef flavor. If your dog refuses, hide the tablet in a small amount of wet food, cheese, or peanut butter. Do not crush or break the tablet unless the package says it's safe. Watch your dog swallow. Some dogs pretend to eat and then spit the pill out.
- Step 3: Confirm the entire dose is swallowed: After giving the tablet, check your dog's mouth and the floor for any pieces. If your dog vomits within 2 hours of taking it, give another full dose. If more than 2 hours pass, wait until the next scheduled dose. If you are unsure whether your dog swallowed the tablet, do not give a second dose; wait until the next month.
- Step 4: Mark your calendar for next month: Tri-Heart Plus must be given every 30 days. Set a recurring reminder on your phone or calendar. A delay of more than a few days can leave your dog vulnerable to heartworm. If you miss a dose by more than 2 weeks, consult your vet before giving the next dose.
About this product
- Tri-Heart Plus for Dogs: Tri-Heart Plus is a beef-flavored chewable tablet that prevents heartworm and controls ascarids and hookworms for one month. The flavor makes it easier to give as a treat, reducing the struggle often seen with pills.

Tri-Heart Plus for Dogs
