Iverhart Max Chew for Dogs 6-12 lbs

Virbac SKU: 50102-1


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1 Chew (1 Month Supply)
6 Chews ( 6 Months Supply)
12 Chews ( 12 Months Supply)

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Iverhart Max Chew for Dogs 6-12 lbs

Help protect your pet from pesky pests with Iverhart Max Chews. These chews are formulated to help prevent heartworm disease and can also help treat and control the other three most common worms-roundworms, hookworms, and tapeworms. This broad-spectrum medication helps to provide safe and effective year-round protection when given monthly and is intended for dogs 8 weeks or older weighing 6 to 12 pounds. To top it all off, it has a drool-worthy bacon flavor that your dog will love.

  • Protects against heartworms, hookworms, roundworms, and tapeworms
  • Ingredients:
    • Ivermectin-protects against heartworms
    • Pyrantel pamoate-treats and controls roundworms and hookworms
    • Praziquantel-treats and controls tapeworms
    • Contains hydrolyzed poultry liver as part of the bacon flavor palatability enticer
  • Affordable heartworm and internal parasite protection
  • Easy Dosing: 96.3% acceptance rate*
  • Bacon enticer gives an irresistable flavor dogs love
  • Beef-free-safe for dogs with beef allergies
  • The only ivermectin-based, bacon-flavored chew
  • Can be given to puppies that are at least 8 weeks old
  • 4 convenient weight ranges:
    • Toy, 6-12 lbs.
    • Small, 12.1-25 lbs.
    • Medium, 25.1-50 lbs.
    • Large, 50.1-100 lbs.
    • For dogs over 100 lbs, use the appropriate combination of chews

Prescription items are NON-RETURNABLE and NON-REFUNDABLE.

Please note product may arrive in a Hardy Paw Pharmacy vial, manufacturer packaging is shown for reference.

Dosage and Administration:

IVERHART MAX Chew should be administered orally at monthly intervals and the recommended minimum dose level of 6 mcg of ivermectin per kilogram (2.72 mcg/lb), 5 mg of pyrantel (as pamoate salt) per kg (2.27 mg/lb) and 5 mg of praziquantel per kg (2.27 mg/lb) of body weight, as follows:

Dog Weight Pounds Chew Per Month Chew Size Ivermectin Content Pyrantel Pamoate Content Praziquantel Content
6.0 to 12 1 Toy 34 mcg 28.5 mg 28.5 mg
12.1 to 25 1 Small 68 mcg 57 mg 57 mg
25.1 to 50 1 Medium 136 mg 114 mg 114 mg
50.1 to 100 1 Large 272 mcg 228 mg 228 mg

IVERHART MAX Chew is recommended for dogs 8 weeks of age or older. For dogs over 100 lbs, use the appropriate combination of these soft chews.

Remove only one dose at a time from the packaging. Return the remaining chew(s) to their box to protect from light. The chew can be offered to the dog by hand or added, intact, to a small amount of dog food. Care should be taken to ensure that the dog consumes the complete dose. The treated dog should be observed for a few minutes after administration to confirm that none of the dose has been lost or rejected. If it is suspected that any of the dose has been lost, redosing is recommended.

IVERHART MAX Chew should be given at monthly intervals during the period of the year when mosquitoes (vectors), potentially carrying infective heartworm larvae, are active. The initial dose must be given within a month (30 days) after the dog’s first exposure to mosquitoes. The final dose must be given within a month (30 days) after the dog’s last exposure to mosquitoes.

When replacing another heartworm preventative product in a heartworm disease prevention program, the first dose of IVERHART MAX Chew must be given within a month (30 days) after the last dose of the former medication. A heartworm test should be performed prior to and 6 months after switching heartworm preventative products.

If the interval between doses exceeds a month (30 days), the effectiveness of ivermectin can be reduced. Therefore, for optimal performance, the chew must be given once a month on or about the same day of the month. If treatment is delayed, whether by a few days or many, immediate treatment with IVERHART MAX Chew and resumption of the recommended dosing regimen will minimize the opportunity for the development of adult heartworms.


For use in dogs only. Keep this and all drugs out of reach of children and pets. In safety studies with ivermectin/pyrantel pamoate/praziquantel tablets, testicular hypoplasia was observed in some dogs receiving 3 and 5 times the maximum recommended dose monthly for 6 months.

In case of ingestion by humans, clients should be advised to contact a physician immediately. Physicians may contact a Poison Control Center for advice concerning cases of ingestion by humans.


Use with caution in sick, debilitated, or underweight animals and dogs weighing less than 10 lbs (see Animal Safety). The safe use of this drug has not been evaluated in pregnant or lactating bitches.

All dogs should be tested for existing heartworm infection before and 6 months after starting treatment with IVERHART MAX Chew, which is not effective against adult Dirofilaria immitis. Infected dogs should be treated to remove adult heartworms and microfilariae before initiating a heartworm prevention program.

While some microfilariae may be killed by the ivermectin in IVERHART MAX® Chew at the recommended dose level, IVERHART MAX Chew is not effective for microfilariae clearance. A mild hypersensitivity-type reaction, presumably due to dead or dying microfilariae and particularly involving a transient diarrhea, has been observed in clinical trials with ivermectin alone after treatment of some dogs that have circulating microfilariae.



(6.0 - 12 lbs) Each Chew contains 34 mcg ivermectin, 28.5 mg pyrantel as pamoate salt and 28.5 mg praziquantel.

(12.1 - 25 lbs) Each Chew contains 68 mcg ivermectin, 57 mg pyrantel as pamoate salt and 57 mg praziquantel.

(25.1 - 50 lbs) Each Chew contains 136 mcg ivermectin, 114 mg pyrantel as pamoate salt and 114 mg praziquantel.

(50.1 - 100 lbs) Each Chew contains 272 mcg ivermectin, 228 mg pyrantel as pamoate salt and 228 mg praziquantel.


At what age can my dog start taking IVERHART MAX (ivermectin/pyrantel pamoate/praziquantel) Chew?
IVERHART MAX Chew is labeled for dogs and puppies 8 weeks of age and older.

Can a pregnant or lactating dog consume IVERHART MAX (ivermectin/pyrantel pamoate/praziquantel) Chew?
The safe use of this drug has not been evaluated in pregnant or lactating dogs.

What are the labeled indications for IVERHART MAX Chew (ivermectin/pyrantel pamoate/praziquantel)?
IVERHART MAX Chew prevents canine heartworm disease by eliminating the tissue stage of heartworm larvae (Dirofilaria immitis) for a month (30 days) after infection and for the treatment and control of roundworms (Toxocara canis, Toxascaris leonina), hookworms (Ancylostoma caninum, Uncinaria stenocephala, Ancylostoma braziliense), and tapeworms (Dipylidium caninum, Taenia pisiformis).

Does IVERHART MAX (ivermectin/pyrantel pamoate/praziquantel) Chew need to be chewed by a dog for it to be effective?
It is important that the dog ingests the entire dose and care should be taken to ensure this happens. If it is suspected that any of the dose has been lost, redosing is recommended.

My dog is allergic to certain proteins. Can my dog take IVERHART MAX Soft Chew (ivermectin/pyrantel pamoate/praziquantel)?
IVERHART MAX Soft Chew contains poultry as the only animal protein. Although "bacon flavored" it does not contain any pork proteins. If your dog has an allergy to chicken, we recommend you consult with your veterinarian before use of this medication.
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