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Product Information

Heartgard Plus is a chewable, beef-flavored tablet administered once a month to protect your dog from the threat of potentially deadly heartworm disease, plus control against roundworms and hookworms. Dogs six months of age and older should be tested for heartworm disease prior to being put on a preventive program and tested annually thereafter. VetSource pharmacy has a direct relationship with and is authorized to dispense Merial products.


Dogs (at least 6 weeks of age)


Heartgard Plus is used to prevent heartworm disease, treat and control roundworms and hookworms.

Active Ingredients

Ivermectin, Pyrantel


Make sure to tell your veterinarian what other medication you are giving to your pet. Quite often your veterinarian may prescribe two different medications, and a drug interaction may be anticipated. In this case, your veterinarian may vary the dose and/or monitor your pet more closely. The following drugs can potentially interact with pyrantel pamoate: levamisole, organophosphates, diethylcarbamazine, and piperazine. Contact your veterinarian if your pet experiences any unusual reactions when different medications are given together. Certain dogs of the collie breed are more sensitive to the effects of ivermectin. Allergic reactions to medications may occur. Be sure to inform VetSource and your veterinarian if your pet has any known drug sensitivities or allergies. If your pet displays symptoms of an allergic reaction, call your veterinarian immediately or go to a veterinary emergency clinic. Symptoms may include but are not limited to: swollen lips, tongue, face, airways; difficulty breathing; agitation; profuse salivation; vomiting; widespread hives and itching.

Side Effects

There are very few side effects when the drug is given at the usual dose. Ivermectin may cause a shock like reaction in dogs. If this occurs, notify your veterinarian. Vomiting has been reported with pyrantel. Other side effects may occur. If you notice anything unusual, contact your veterinarian.


Heartgard Plus should be given orally as directed by your veterinarian.

Product Notes is not a licensed pharmacy.

All prescription products (excluding prescription food) fulfilled by VetSource. VetSource only ships to the contiguous 48 US states.

You must have a valid veterinarian-client-patient relationship to request prescription products from VetSource. Prescription requests are subject to a drug utilization review by a licensed pharmacist at VetSource for patient safety.

All prescription products (excluding prescription food) are FDA approved, or EPA licensed, to be sold in the US.

Most prescription products cannot be returned, however, Hill's Prescription Diet products can be returned.

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Heartgard Plus Chewables (Green) - 26-50 lbs - Beef - 6 pk

1 review
$45.89 SALE

All prescription products filled by VetSource Pharmacy.
More infomation.
Weight Count Package Quantity Unit Price
Heartgard Plus (Green) - 26-50 lbs 6 ct 6
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Heartgard Plus (Green) - 26-50 lbs 12 ct 12
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by PowerReviews
Heartgard Plus Chewables(Green) - 26-50 lbs

(based on 1 review)

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Heartgard Plus

By Linjo

from Pennsylvania

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      Best Uses

        Comments about (Green) - 26-50 lbs:

        Great product with a great price. Much lower than from the vet! Keeps my dog free of heart worm, round worm and others. Thank You Wag. Com

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