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At a Glance
Keeps your dog safe from heartworm
Once-a-month chewable
Delicious beef flavor
This product requires a prescription.

Heartgard Regular for Dogs

Our Price

Free Shipping on orders over $48
Pet Size
Don't know your pet's weight?
If you can't get them on the scale, try this super simple method:

1) Weigh yourself.
2) Weigh yourself holding your pet.
3)Subtract the two numbers to get their weight.

Too heavy to hold? Your vet will weigh them if you ask (or may already have it on file if you call).
Supply For
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How To Order Prescriptions Online

  • 1

    Find the right product

    Make sure it matches your pets prescription. Don't forget to compare the dosage for pills/capsules!

  • 2

    Add to Cart

    Just like any other online store. Make sure the quantity matches what's been prescribed by your veterinarian.

  • 3

    Tell us about your pet and vet

    Answer some questions during checkout and we'll contact your vet and verify the prescription for you. (you can also mail us the written prescription)

  • 4

    That's It!

    If the prescription has any refills, processing your future orders for that medication can be expedited.

  • Other Customers Also Bought for their Pet

    Frontline Plus
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    • Prevents every stage of flea life (eggs, larvae, and pupae) from developing into adults
    • Frontline Plus is waterproof
    • Available in 6 or 12 month packs, for dogs in weight ranges 5-22 lbs, 23-44 lbs, 45-88 lbs, and 89-132 lbs
    K9 Advantix II for Dogs
    • Kills fleas and ticks within 12 hours
    • Kills flea eggs, pupae, larvae, and adults for 30 days
    • Kills and protects against mosquitoes, which are the primary cause of heartworm
    • Protect your dog from a variety of disease carrying ticks
    Advantage II
    • Kills all stages of flea life (including eggs, larvae, and adult) within 12 hours
    • Kills fleas on contact, so they die before they bite your dog
    • Kills and protects against lice
    • Waterproof protection for a full 30 days

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Rated 5 out of 5 by 12 reviewers.
Rated 5 out of 5by Vetrinarian recommended since my GSD was a pupVet recommended and continue usage is my protocol. Easy as giving my dog a treat. No side effects noted 05/18/2016
Rated 5 out of 5by Heartgard for regular DogsWe use Heartgard for Regular Dogs because it's effectiveat preventing heart worms in our Doxies. We've tried other brands and Heartgard is best priced, especially w/five Doxies. 03/17/2016
Rated 5 out of 5by good resultsWe've been using this brand for many years, which is also what our vet uses/recommends. None of our dogs, over this long period, has ever had any problems. 02/27/2016
Rated 4 out of 5by HeartguardGreat product. Not really any cheaper here than anywhere else. 08/11/2015
Rated 4 out of 5by Good product; not a good place to purchase.This product was cheaper at my vet's office! To purchase online you still need to get a RX from your vet. Also, since February, heartworm medicine can not be sold without an annual test for heartworm so you still have an expense at your vet's. 05/11/2015
Rated 5 out of 5by Ease of administeringMy dogs view their monthly heart guard treatment as a treat and when I get out the box there are wagging tails and eager faces. Then they want a second piece of heart guard. 12/15/2014
Rated 5 out of 5by GREAT PRODUCT !!really easy to give and for the pups very easy to take .:) 05/15/2014
Rated 5 out of 5by Just what the Dr. orderedMy dog loves the flavor of these. She thinks they are a treat. I was in need of them during a promotional period and thought I would give Petcare RX a try. Setting up the Vet info for the first time was the toughest part but got straightened out pretty quickly. The product arrived in less than a week. As a repeat customer, reordering is a breeze. I find the cost in line with buying local so with free shipping, the convenience of ordering online is great 04/18/2014
Rated 5 out of 5by same product your vet gives youSave a trip (and cost) of an office call, PetRx takes care of the call for you. 08/15/2013
Rated 5 out of 5by Shop here first!Heartgard is an effective product and has always been recommended by my Doggie-Doc.PetCareRx is the only place I buy it now. They are less expensive, and my shipment arrives in less than a week! 07/16/2013
Rated 5 out of 5by Heart GardThis medicine is very good for your pets and they like the taste. They want to take it rather then having to force them to take the medicine 04/15/2010
Rated 5 out of 5by Heartgard PurchaseI purchased Heartgard from PetCareRx and it was easier than getting it from my local vet and a lot cheaper. I ordered the product in the evening, PetCareRx called my vet the next day, and I had the product on my doorstep within just a few days. 04/26/2008
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