One bite
is all it takes.

Heartworm is a potentially fatal disease that is spread by mosquitoes. Tiny heartworm larvae are ingested when a mosquito bites an infected dog. Over the next 10–14 days, these larvae mature. When the mosquito bites another dog, they enter through the bite wound and infect their new host.

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Protect
your dog.

HEARTGARD-30 PLUS provides 100% guaranteed heartworm protection, PLUS control of roundworm and hookworm, too.

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A SPECIAL HEARTGARD BONUS!

Right now, you can receive a FREE heart-shaped flashing reflector to safeguard your pet when you purchase HEARTGARD-30 PLUS Blue. Ask your veterinarian for more information.

HEARTGARD-30® PLUS and the DOG AND HAND LOGO are registered trademarks of Merial Limited. © 2011 Merial Canada Inc. All Rights Reserved. MERP-2109 Privacy Policy