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All the latest deals, news and more > Pet Pharmacy > Heartworm > Item # 496989

Iverhart Plus Dog for Dogs

Prescription Required

Eligible for free e-certification with purchase
1 to 25 lbs


In Stock. Usually Ships 3-6 business days.

26 to 50 lbs


Temporarily Oversold. Please Order at a Later Date.

51 to 100 lbs


In Stock. Usually Ships 3-6 business days.

Shipping weight = 1.00 lb.


Sometimes, manufacturers require that products be advertised only at their suggested prices. When we choose to sell these items for less, we display the sale price only in the cart. To see the price, click Add to Cart.


All medications are filled by VetSource Pharmacy. More information. Can only be shipped to the 50 US states.

Product Summary:

Iverhart Plus® Chewable Tablets
Iverhart Plus prevents heartworm disease and also controls roundworms and hookworms in dogs in a once a month liver flavored chewable tablet. Dogs should be tested for heartworm disease prior to being put on a preventive program and tested annually thereafter.
Iverhart Plus is used to prevent heartworm disease and treat and control roundworms and hookworms.

Item Specifications:

For Use:
Dogs (at least 6 weeks of age)

6 ct

Small (Blue): 1-25 lbs
Medium (Green): 26-50 lbs
Large (Brown): 51-100 lbs 
Active Ingredients:
ivermectin & pyrantel pamoate

Use with caution in sick, debilitated or underweight animals and dogs weighing less than 10 lbs. Certain dogs of the collie breed are more sensitive to the effects of ivermectin. 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. 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:
Side effects may include loss appetite, vomiting, drowsiness, and diarrhea. Ivermectin may cause a shock like reaction in dogs. If this occurs, notify your veterinarian. Other side effects may occur. If you notice anything unusual, contact your veterinarian.

Iverhart Plus should be given orally as directed by your veterinarian.
Please note:

We are not a licensed pharmacy.


This prescription product or therapeutic food is fulfilled by VetSource, a licensed pharmacy in all 50 US states.  VetSource only ships to the 50 US states. 


To order prescription products or therapeutic foods  from VetSource you must have an existing, valid veterinarian-client-patient relationship.  Prescription requests are subject to a Drug Utilization Review by a licensed pharmacist at VetSource for patient safety.


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


Prescription products cannot be returned. 

Downloadable Resources
Patient Information SheetPatient Information Sheet

Product Reviews by Customers

Browse 2 questions and 2 answers
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My puppy weighs 58 pounds. We have leftover 26-50 Iverhart plus. Is it okay to give him 2 of the 26-50 to use them up?
A shopper on Aug 3, 2016
Best Answer: It's probably not the best thing to do, but to use up leftover ones it should be fine.
Reply · Report · Pam E on Aug 3, 2016
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12 month supply iverh
art plus cost?
A shopper on Mar 22, 2016
Best Answer: It depends on the size of the dog. Also, it is a 6 pack, so a box is for 6 months.
Reply · Report · Brenda SStaff on Mar 24, 2016
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