Iverhart MAX Chew Tabs for Dogs | On Sale | EntirelyPets Rx
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Iverhart MAX Chew Tabs for Dogs

Iverhart MAX Chew Tabs for Dogs

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Recurring Saings in EprxAUTOSHIP & SAVE[Details]
$8.78Reg $11.99
$52.68Reg $68.99
$105.38Reg $136.99
  • Description
  • Ingredients
  • Directions
  • Reviews


Iverhart Max prevents canine heartworm disease. It also treats and controls roundworms, hookworms, and tapeworms. Iverhart Max requires a prescription from your veterinarian.

For: Dogs (over 8 weeks of age and weighing at least 6 pounds)


  • Tasty chewable tablets (pork liver cereal based with artificial beef)
  • Easy to administer
  • Given once a month

Prescription Required


Iverhart Max– Magenta Box (Dogs 6-12 lbs):
Active Ingredients (per chewable tablet) Amount
Ivermectin 34 mcg
Pyrantel Pamoate 28.5 mg
Praziquantel 28.5 mg

Iverhart Max– Blue Box (Dogs 12.1-25 lbs):
Active Ingredients (per chewable tablet) Amount
Ivermectin 68 mcg
Pyrantel Pamoate 57 mg
Praziquantel 57 mg

Iverhart Max – Green Box (Dogs 25.1-50 lbs):
Active Ingredients (per chewable tablet) Amount
Ivermectin 136 mcg
Pyrantel Pamoate 114 mg
Praziquantel 114 mg

Iverhart Max – Brown Box (Dogs 501-100 lbs):
Active Ingredients (per chewable tablet) Amount
Ivermectin 272 mcg
Pyrantel Pamoate 228 mg
Praziquantel 228 mg


  • Give Iverhart Max Flavored Chewables once a month on the same day of each month year round.
  • Iverhart Max Flavored Chewables can be given by hand, mixed intact with a small amount of food, or placed in the back of the dog’s mouth for forced swallowing.
  • Watch dog closely following dosing to be sure the entire dose has been swallowed. If it is not completely swallowed, give one more full recommended dose as soon as possible.

View Iverhart MAX Chew Drug Facts Sheet.


Do not remove chewable from its wrapper until ready to give to pet.

Pet Weight Dosage
Dogs/Puppies (8 weeks of age and older): 6 - 12 lbs Give 1 chewable every month (Magenta Box)
12.1 - 25 lbs Give 1 chewable every month (Blue Box)
25.1 – 50 lbs Give 1 chewable every month (Green Box)
50.1-100 lbs Give 1 chewable every month (Brown Box)
Over 100 lbs Give combination of chewables based on weight
Cats: X X
Horses: X X


Should be stored at room temperature.

How it works

Iverhart Max is an anthelminthic (dewormer). The ingredient pyrantel pamoate is used to treat and control roundworms and hookworms in dogs. Praziquantel is used for treating and controlling tapeworms.


Side effects of Iverhart Max are rare, but may include lethargy, limpness, salivation, shaking, diarrhea, decreased appetite, licking lips, and belching. Do not give Iverhart Max to your pet if already giving a different heartworm medication.


Review Summary
4 Reviews
50% (2)
50% (2)
0% (0)
0% (0)
0% (0)
100% Recommend this product (4 of 4 responses)
By Jill
April 27, 2018
The Rx is fine but will never purchase from EntirelyPets Pharmacy again due to their extremely poor customer service.
By Janet
Campobello, SC
Good Heartworm medication
September 26, 2015
I am pleased that your pharmacy still had this product available when I ordered; unfortunately now that I need to order again for my other greyhound, it is no longer available, on backorder with no known date regarding when it will be back in stock. Price of this medication was reasonable (had a promotional code for 12% off), my vet was contacted promptly for prescription approval, and free shipping was fast. Product arrived in good condition and as described. Iverhart Max not only prevents heartworm, it also treats and controls Roundworms, Hookworms, and TAPEWORMS! I would definitely order again from this pharmacy if only it was available!!!
  • Treats and controls roundworms, hookworms and tapeworms as well as preventing heartworm disease.
  • No longer available at this time.
By John S.
Columbus, OH
great value
September 25, 2015
I have been using this for years for our dogs, instead of the Heartgard I use to use before. It is significantly less expensive.
  • The price. Less than half that of Heartgard.
  • Even though these are "chewables", our dogs don't care for the taste and will spit them out. So I have to use the forced swallow method of administering.
  • Also, I just found out that the manufacturer has suspended production - something about changing locations or a new facility - and when current supplies are gone will likely be unavailable until sometime next year.
By Lucy
Great price fast service
June 7, 2015
Very efficient thank you!

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