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Guide to Heartgard Plus for Dogs - Ivermectin

Ivermectin and Pyrantel Pamoate, Key Ingredients in Heartgard Plus, Prevent and Treat Heartworm Infections

By Team PetCareRx. May 22, 2013

Heartgard Box - Chewable

indications for Heartgard Plus for Dogs

Ivermectin and Pyrantel pamoate are found in monthly heartworm medications for dogs. In dogs, these medication are found to be 100% effective in treating and preventing heartworm infections. They are available in tablet, as well as chewable forms.


Medicines containing Ivermectin and Pyrantel pamoate can be safely administered to all breeds of dogs, including stud dogs and breeding bitches. Puppies six weeks and older can be safely treated with these medicines.


Medicines with Ivermectin and Pyrantel pamoate are given once a month year round for the prevention of heartworm disease. Take care not to increase the dosage more than what is prescribed by the veterinarian. Over dosage can lead to symptoms like vomiting, diarrhea, and lack of coordination. The dosage is usually prescribed as per body weight.

Side Effects

The common side effects noted in dogs are tremors, dilated pupils, and loss of body weight and even death. In certain cases of overdose, immediate side effects like stumbling, tremors, blindness, disorientation or weakness are noticed within 12 hours of administration.

Brand/Generic equivalents

Ivermectin and Pyrantel pamoate

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Heartgard Plus for Dogs at a glance

  • 1For dogs
  • 2A parasite preventative and dewormer
  • 3An oral medication
  • 4Treats and prevents heartworm infections
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