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Heartgard

What are Dog Heartgard Chewables?
Heartgard Chewables are a flavored treatment for dogs given once a month to prevent heartworms. Heartgard Chewables require a prescription from your veterinarian.
    
For: Dogs (6 weeks of age or older and no weight requirement)
 
Benefits:

  • Highly effective in preventing heartworms
  • A convenient and tasty chewable for easy administration
  • Delicious beef flavor that most dogs will eat

How it works:
Heartgard prevents heartworm disease by eliminating the tissue stage of heartworm larvae for a month after infection.

Studies have indicated that certain dogs of the herding breeds are more sensitive to the effects of ivermectin administered at elevated dose levels due to the MDR1 gene. For a full list of dog breeds that may be affected, click here.

Cautions:
Can cause sensitivities in herding dog breeds. It is important that you give your pet this preventative every month. If you miss more than two monthly doses, we recommend calling your vet before continuing the medication. Also, note that side effects are rare at the recommended heartworm prevention dose. Higher doses in dogs may cause tremors, dilated pupils, loss of body weight, and death. Side effects in cats include agitation, loss of appetite, staggering, dilated pupils, tremors, blindness and disorientation.