Heartworm Control

Heartworm (a mosquito-borne disease)

Discovered by American parasitologist Joseph Leidy in 1856, heartworm has been given the scientific name Dirofilaria immitis. Heartworm is a disease common throughout the United States and worldwide, it is transmitted by mosquitos to dogs, cats and other species of mammals.

Once infected the male and female worms live within the chambers of the heart. The worms prohibit proper valve closure as blood is pumped from one chamber to the next, seriously impairing the operation of the heart. If left untreated the effects are weight loss, listlessness, cough, difficulty breathing, muscular weakness, disturbances of vision, chronic heart failure, and eventual death.

Drugs have been developed that will prevent dogs from contracting heartworm. The drug attacks the immature stages of the parasite in the dog and prevents the worms from maturing to the adult stage. Therefore, a dog that is on medication can be repeatedly infected during the mosquito season and remain free of heartworm.

For further information please visit American Heartworm Society or contact your veterinarian.


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We are a non-USA based business. Unless otherwise indicated all products supplied by us are registered with either the Australian Pesticides and Veterinary Medicines Authority (APVMA); the UK Veterinary Medicines Directorate (VMD); or the RSA Medicines Control Council (MCC) and are available for purchase in Australia, the UK or the RSA, as the case may be under the same brand name or otherwise, without requiring a prescription from a veterinarian in one or more of these three countries. Further details can be obtained on:


Regulatory requirements differ between countries. The products supplied by us may not be approved for sale in your country by the relevant regulatory authorities or may not be approved for sale in their Australian, UK or RSA packaging. While the products supplied by us may be supplied in Australia, the UK or the RSA, as the case may be, without a veterinarian prescription in one or more of these three countries, a prescription may be required in your country. As an example, in the USA, the products supplied by us may not have received an approval for sale by the FDA, EPA and/or another regulatory authority. Some products may require a prescription from a veterinarian.
We recommend that you check with the regulatory authorities in your country and/or your veterinarian if you have any concerns and to ensure that it is legal for you to purchase our products.

Frontline®, Frontline Plus®, Heartgard®, Certifect® and Nexgard® are registered trademarks of Merial, a Boehringer Ingelheim company.
Advantage®, Advantix®, Advocate®, Advantage Multi® and Seresto® are registered trademarks of Bayer.
Revolution® and Stronghold® are registered trademarks of Zoetis.
Bravecto® is a registered trademark of MSD, a Merck company.
Capstar®, Comfortis® and Trifexis® are registered trademarks of Elanco, an Eli Lilly company.
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