Partnering with Your Veterinarian is More Important Than Ever This Heartworm Awareness Month

Zoetis Encourages Dog Owners to Ask about ProHeart® 6, the Only Heartworm Product in the U.S. That Ensures Six Months of Prevention with Just One Shot

PARSIPPANY, N.J., April 4, 2019 – April is National Heartworm Awareness Month, an ideal time for dog owners to have the important conversation with their veterinarians about heartworm disease, a potentially life-threatening condition transferred by the bite of an infected mosquito. According to the American Heartworm Society, an estimated 1 million dogs in the U.S. are heartworm positive.1 Fortunately, heartworm disease is preventable, and one shot of ProHeart® 6 (moxidectin) from a trusted veterinarian provides dogs with six months of uninterrupted protection. 

“All dogs, regardless of their age, breed or lifestyle are susceptible to heartworm infection, as the disease has been found in all 50 states2,” said Claire Walther, DVM, Veterinary Specialty Team, Zoetis Petcare. “Heartworm Awareness Month is the perfect time for veterinarians to help educate dog owners that consistent, on-time prevention is required all-year round, regardless of location or season. ProHeart 6 is a great option for dog owners seeking convenient and assured protection from heartworm disease for their dogs.” 

Inconsistent compliance from dog owners, such as accidently missing doses or only giving pets heartworm prevention during the warmer months when mosquitoes are more active, has largely contributed to the rise in heartworm disease around the nation.3 ProHeart 6, available for dogs six months of age and older, ensures prevention by eliminating the chance for missed monthly doses and provides dog owners with peace of mind. This Heartworm Awareness Month, dog owners should schedule a visit with a veterinarian and ask about ProHeart 6 for their dogs.   

For more information about ProHeart 6, visit

About ProHeart 6 
ProHeart 6 is a veterinarian-administered injectable parasiticide for dogs that provides six months of heartworm disease prevention, as well as treatment for common hookworm infections (Ancylostoma caninum and Uncinaria stenocephala) existing at the time of administration. Just one injection protects dogs against heartworm disease for six full months, eliminating the need for monthly dosing.

ProHeart 6 should be used in healthy dogs. Do not administer to sick, debilitated, underweight dogs or dogs with a history of weight loss. Prior to administration, veterinarians should assess patient health. Use caution when administering ProHeart 6 with vaccines. Adverse events, including anaphylaxis, have been reported following the concomitant use of ProHeart 6 and vaccines. In some cases, anaphylactic reactions have resulted in death. Use with caution in dogs with pre-existing or uncontrolled allergic disease (food allergy, atopy or flea allergy dermatitis). Dogs receiving ProHeart 6 should be tested for existing heartworms. In people, avoid ProHeart 6 contact with eyes; if contact occurs, rinse with water for 15 minutes and seek medical attention immediately. Certification is required before veterinarians and staff administer ProHeart 6. See full Prescribing Information or call 1-888-ZOETIS1 (963-8471). 

About Zoetis 
Zoetis is the leading animal health company, dedicated to supporting its customers and their businesses. Building on more than 65 years of experience in animal health, Zoetis discovers, develops, manufactures and commercializes medicines, vaccines and diagnostic products, which are complemented by biodevices, genetic tests and a range of services. Zoetis serves veterinarians, livestock producers and people who raise and care for farm and companion animals with sales of its products in more than 100 countries. In 2018, the company generated annual revenue of $5.8 billion with approximately 10,000 employees. For more information, visit

For further information, contact:
Colleen White

Katelyn Kwiatkowski

1Heartworm infographics: protect your pets. American Heartworm Society. Accessed February 26, 2019.
2Current canine guidelines for the prevention, diagnosis, and management of heartworm (Dirofilaria immitis) infection in dogs. American Heartworm Society. Accessed February 26, 2019.
3Increasing incidence of Dirofilaria immitis in dogs in USA with focus on the southeast region 2013-2016; Jason Drake and Scott Wiseman. Parasites & Vectors (2018) 11:39 



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