My wife and I have two dogs, both in excess of 50lbs. We have been using Heart Guard since they were puppies. We trust the product and it continues to serve it's intended purpose. Great product.

With the abundance of mosquitos and who knows what other insects carrying diseases, HEARTGUARD is a MUST for our loved ones!

Heartgard protects my dog's life and that is very important to me. I would not use any other brand.

Probably the most widely used product to prevent Heartworms. I’ve used Heargard as far back as I can remember and never had an issue.

This product must taste really good!! My doggies can't wait to get their "treat" each month! The monthly sticker reminder is an added bonus!