Questions? Call 877-813-7387 Mon-Fri 8am - 5pm CT
Click for details
close ×

Save 5% With Autoship

Autoship is an easy way for items to be automatically delivered on a regular schedule. Autoship is easily managed online and can be canceled at anytime. Simply choose how often you want to receive your items, and it will be automatically delivered to your doorstep. A 5% discount is applied to all autoship orders. Shipping is included on orders over $69.
An email reminder is sent 3 days before the autoship is scheduled for shipment. Order frequency, next order date and/or quantity can be changed in the 'autoship' section in your account. Changes to orders may be made anytime within 24 hours of the next scheduled order date.

See all Autoship details »

Rx Tri-Heart Plus, Brown, 51-100 lbs

Rx Tri-Heart Plus, Brown, 51-100 lbs
Rx Tri-Heart Plus, Brown, 51-100 lbs
Part Number:490799|


Merck Animal Health
  • Monthly chewable tablet prevents heartworm disease
  • Eliminates the tissue stage of heartworm larvae
  • Treats and controls ascarids and hookworms

Search website for other available options

Learn more:
• Heartworm Preventive Comparison Chart
• Heartworm Disease in Dogs
• Heartworm Disease in Cats

Your Price: $46.99
In Stock

Choose Options

Supply / Weight
6 Month / 51-100 lbs (Brown)

Save 5% and have this product automatically shipped to you!

Free Shipping

Tri-Heart Plus

There are many parasites which can prove harmful to your pooch. Heartworms, roundworms, and hookworms are three such parasites which should be avoided at all costs, and your dog needs your help to prevent infections by these nasty pathogens. Fortunately, there are many solutions! Tri-Heart Plus is an easy to administer product which does that very thing. This is a chewable tablet which, when ingested, helps prevent parasitic infections in dogs. Heartworms, roundworms, and hookworks are far less likely to infect a dog which has been taking this med.