Heart Shield Plus

Heart Shield Plus

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Product Description


Heart Shield Plus flavored chewables for dogs is a high quality, cost-effective solution to the year-round threat of heartworms, roundworms and hookworms. Just one highly effective Heart Shield Plus flavored chewable given monthly is guaranteed to protect your dog against heartworm disease and treat and control common, zoonotic roundworms and hookworms. And it contains the veterinarian preferred medicine for heartworm prevention — ivermectin/pyrantel.


Remove one flavored chewable from the foil-backed blister card. Most dogs find the flavor so appealing that the product can be offered by hand. Alternatively, it may be added intact to a small amount of dog food or placed in the back of the dog’s mouth for forced swallowing. For easy administration, insert chewable into Vet IQ’s Pill Treat flavored soft chews and give to your pet.

Care should be taken to ensure the dog consumes the complete dose, and treated animals should be observed for a few minutes after administration to ensure that part of the dose is not lost or rejected. If it is suspected that any of the dose has been lost, redosing is recommended.

Heart Shield Plus flavored chewables should be given at monthly intervals during the period of the year when mosquitoes 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 preventive product in a heartworm disease preventive program, the first dose of Heart Shield Plus flavored chewables must be given within a month (30 days) of the last dose of the former medication.

If the interval between doses exceeds a month (30 days), the efficacy of ivermectin can be reduced. For optimal performance, the flavored chewable must be given once a month on or about the same day of the month. If treatment is delayed, immediate treatment with Heart Shield Plus flavored chewables and resumption of the recommended dosing regimen minimizes the opportunity for the development of adult heartworms.

Side Effects

In clinical trials with ivermectin/pyrantel, vomiting or diarrhea within 24 hours of dosing was rarely observed (1.1% of administered doses). The following adverse reactions have been reported following the use of ivermectin: Depression/lethargy, vomiting, anorexia, diarrhea, mydriasis, ataxia, staggering, convulsions, and hypersalivation.

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