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Dr. Billeter

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You may have heard about the recall on Proheart 6, the injectable six-month heartworm preventative. The FDA and Fort Dodge (the manufacturer) have mutually agreed to remove Proheart from the market while investigating potential adverse reactions. In our experiences at HAH, we have had virtually no reported adverse effects. To read more, visit Fort Dodge's official statement on the matter.

From the statement:

It is important to recognize that all potential adverse events reported to the FDA are "unfiltered," meaning all reported potential events are submitted without regard to cause, and cases subsequently determined not to be related to the product are still included in the overall reporting numbers. A thorough evaluation of the data indicates that the incidence of disease and death seen with the use of ProHeart 6 is at or below the baseline (the normal number that would be expected) for the U.S. canine population. Specifically:

The overall incidence of adverse events represent less than one half of one percent of the more than 18 million doses have been sold to veterinarians.

For hematologic and autoimmune signs, the incidence rate is one in 31,000 doses, well below the baseline for the U.S. canine population.

The average age for liver signs in ProHeart 6 reports is within the range reported in the general canine population.