Questions? Contact Us Chat with us now or Call us at 1-866-761-6578

Contact Us

Please do not hesitate to contact us with questions:

Heartgard PLUS Chewables for Dogs Rx

Starting at $45.12$31.49
Free shipping
over $49!*
* Most orders ship within one business day after approval


Email us at
or please call us at

Heartgard Plus for Dogs by Merial

It’s easy to protect Lucky or Max from heartworm disease and other dangerous parasites with Heartgard Plus for Dogs. 

  • Effectively kills heartworm, hookworm, and roundworm
  • Tasty chewables dogs love 
  • Convenient once-a-month dosing
  • Safe for dogs six weeks and older, pregnant and breeding females


Prevention is key to fighting heartworm in dogs.  Heartgard Plus for Dogs stops the disease before it starts by killing heartworm larvae. The powerful FDA-approved chemicals Ivermectin and Pyrantel kill and control heartworm plus other disease-causing parasites including hookworm and roundworm, but are proven safe for dogs 6 weeks and older.


Dogs love the chewable tablets so dosing is easy -- tablets are available in flavored or unflavored varieties in a range of dosage sizes.  Heartgard Plus for Dogs is usually prescribed in 6 or 12-month supplies.


What you should know about Heartgard Plus for Dogs:

  • Your dog's veterinarian may order a heartworm test before prescribing this medication.
  • Talk with your dog's veterinarian about the right dosage for your dog.
  • Follow dosing directions exactly - don’t give your dog more medication than directed and don’t skip doses. 
  • Read the label carefully for information about storage, possible side effects and drug interactions. 


Heartgard Plus is sold as a prescription drug in a maximum of a 12 month supply per pet per order per year. 

Most veterinarians require and the American Heartworm Society recommends an annual heartworm test before prescribing Heartgard Plus heartworm preventive for your pet.

Talk with your pet's veterinarian for more information and to find the best flea and tick preventative to complement Heartgard Plus.