Iverhart Max


Iverhart Max Soft 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

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Your pet must have a current heartworm test on file with your veterinarian in order to be prescribed heartworm medication. Please visit your veterinarian to have this test performed annually to protect them. 

Uses                                                                                                                                                Used to prevent 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.

Possible Side Effects                                                                                                                  Please contact your veterinarian if the following adverse reactions occur: depression/lethargy, vomiting, anorexia, diarrhea, mydriasis, ataxia, staggering, convulsions, and hypersalivation.

Drug & Food Interactions                                                                                                            Talk to your veterinarian about any other drugs your pet is taking before starting this medication.

                                                                                                                                                               Precautions                                                                                                                                       All pets should be tested for existing heartworm infection before starting treatment, which is not effective against adult heartworm. Infected pets must be treated to remove adult heartworms and microfilariae before initiating a program with this medication. While some microfilariae may be killed, this medication is not effective for microfilariae clearance. Keep this and all drugs out of the reach of children. In case of ingestion, contact your physician immediately. Physicians may contact a Poison Control Center. Keep this and all drugs out of the reach of children.

Additional information


6-12 lbs, 12-25 lbs, 25-50 lbs, 50-100 lbs


Single, 6 mo.