Note, content for veterinary professionals only.

IVERHART MAX® Chew (ivermectin/pyrantel pamoate/ praziquantel)

IVERHART MAX® Chew offers protection that your patients deserve at a value your clients will appreciate.*

IVERHART MAX® Chew (ivermectin/pyrantel pamoate/praziquantel) prevents heartworm disease, treats and controls roundworms, hookworms and tapeworms, and in a bacon-flavored chew that has a 96% acceptance rate.

  • 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


*In a field study of 132 dogs in their home environments, 96.3% accepted the product when offered from the hand or from a bowl with or without food, 3.0% accepted it when placed in the dog’s mouth, and 0.7% refused it. Reference: 1. Data on file. Virbac Corporation.




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Pet Owner Information:

We have a separate site specifically tailored to pet owners with all the information you need to ensure your pets are taken care of to the highest degree! Click here to view this product's page on our pet owner website!




Important Safety Information

IVERHART MAX® Chew (ivermectin/pyrantel pamoate/praziquantel) is well tolerated. All dogs should be tested for heartworm disease before starting a preventive protocol. Following the use of IVERHART MAX® Chew, gastrointestinal and neurological side effects have been reported. For full prescribing information, contact Virbac at 1-800-338-3659 or download the product insert.



(50.1 - 100 lbs) Each Chew contains 272 mcg ivermectin, 228 mg pyrantel as pamoate salt and 228 mg praziquantel.
(25.1 - 50 lbs) Each Chew contains 136 mcg ivermectin, 114 mg pyrantel as pamoate salt and 114 mg praziquantel.
(12.1 - 25 lbs) Each Chew contains 68 mcg ivermectin, 57 mg pyrantel as pamoate salt and 57 mg praziquantel.
(6.0 - 12 lbs) Each Chew contains 34 mcg ivermectin, 28.5 mg pyrantel as pamoate salt and 28.5 mg praziquantel.