Heartgard Plus protects dogs from heartworms, roundworms, and hookworms and is one of the most popular products on the market. It does not protect against fleas and ticks, but there are additional ...

She claims Merial had known since 2000 or 2002 that Heartgard was not completely effective against heartworm in dogs, even though the company was marketing it as "100 percent" effective.

Some pet owners are now concerned that medicines used for years to prevent the disease may not work as well as they thought. ... Heartgard Plus, is being called into question.

Dogs with food ingredient allergies now have an alternative to help prevent heartworm disease. Duluth, Ga. – July 16, 2014 – Merial today announced the re-launch of its HEARTGARD® (ivermectin ...

GREENVILLE, Miss. (CN) – A federal class action claims the makers of a popular heartworm medicine have ignored 7 years of warnings from the FDA and jeopardized the lives of thousands of dogs by ...

ATLANTA (CN) – The maker of Heartgard Plus, a heartworm drug used by millions of dog owners, “extortionately fired” its head of “global head of pharmacovigilance” after she refused to destroy a ...

Blaho-Owens said the company dropped the claim that Heartgard was 100 percent effective in 2008, but it did not include a warning on the box that medication may not work on all dogs.

Heartgard medications vary based on the weight of the pet. While the medication is very effective, annual testing is still extremely important, Dangoudoubiyam said.

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