Iverhart MAX Soft Chews

Iverhart MAX Soft Chews
6.0-12 lbs - 6 pk - (Purple) - Toy 
12.1-25 lbs - SINGLE - (Blue) - Small - 1 dose, exp 8/2021
12.1-25 lbs - 6 pk - (Blue) - Small
25.1-50 lbs - 6 pk - (Green) - Medium
50.1-100 lbs - SINGLE - (Brown) - Large - 1 Dose, exp 8/2021
50.1-100 lbs - 6 pk - (Brown) - Large
SKU : 115012_-RX
Price: $35.38

Veterinarian Prescription (Rx) Required

  • For use in dogs to prevent canine heartworm disease
  • Available in four sizes
  • For oral administration

Consider short-dated singles in Blue and Brown and SAVE!

How to Order Prescriptions


Iverhart MAX Soft Chews is for use in dogs to prevent canine heartworm disease by eliminating the tissue stage of heartworm larvae for a month (30 days) after infection and for the treatment and control of roundworms, hookworms, and tapeworms. 

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

Dosage and Administration

Remove only one dose at a time from the packaging. Return the remaining soft chew(s) to their box to protect from the light. The soft chew can be given to the dog by hand or administered in their dog food. Dog should take entire dose. If any of the dose has been missed by the dog, administering again is recommended. 
Iverhart Max Soft Chews should be given once a month during the time of year when mosquitoes potentially carrying infective heartworm larvae, are active. The first dose must be given within 30 days after the dog's first exposure to mosquitoes. the final dose must be given within a month 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 Soft Chews must be given within a month of the last dose of former medication. A heartworm test should be performed prior to switching heartworm preventative products. 

Dog Weight Pounds 

Soft Chew Per Month

Soft Chew Size

Ivermectin Content

Pyrantel Pamoate Content

Praziquantel Content

 6.0 to 12 lbs



34 mcg

28.5 mg

28.5 mg

12.1 to 25 lbs



68 mcg

57 mg

57 mg

25.1 to 50 lbs



136 mcg

114 mg

114 mg

50.1 to 100 lbs



272 mcg

228 mg 

228 mg


    • For use in dogs only
    • Keep out of reach of children and pets
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