Pet Dog Cat Heartworm Medication Resistance?

For more please visit: www.DogExplorer.com – comments are moderated! Follow us on Twitter http – Every month, lots of dog owners, and a few cat owners, give their pets some form of heartworm prevention. But recent studies are showing increasing numbers of heartworm positive pets across the country. Some people believe the worms now have the upper hand. Has our trusted protection failed us? Dog owners, and a growing number of cat owners understand that once-a-month heartworm preventives keep their pets safe from a very serious cardiovascular parasitic disease. Despite consistent use of preventive medications, a significant number of dogs are testing positive for heartworms, especially in the mosquito heavy Southeastern US. Are we seeing the beginnings of a resistance movement? In some cases, careful questioning of clients reveals some monthly doses of medication were not given, opening the door for potential infection. In other cases, medical records and client compliance appear to be complete, yet the pet is positive on the annual heartworm blood test. Heartworm preventive works by killing immature heartworm larvae that are spread by mosquitoes. In theory, a pet who receives medication each month should be protected and never have a positive heartworm test. Why then, do some dogs test positive? Many owners are quick to blame the heartworm preventives. They believe continued use of the drugs will create resistant worms and that will lead to an increase in positive cases

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FDA Clears ProHeart 6

 

FDA clears reintroduction of ProHeart 6 to the veterinary channel
New rules call for client consent, veterinarian training program starting June 12

Overland Park, Kan. — ProHeart 6 is back. In fact, the injectable heartworm preventive (moxidectin) from Fort Dodge Animal Health was reintroduced to the market today following approval from the Food and Drug Administration (FDA). The announcement follows an exhaustive review from FDA’s Center for Veterinary Medicine (CVM) since its voluntary recall in 2004.

The review, according to Fort Dodge Animal Health, was based on an "extensive body of scientific data and international experience, which support the decision to return this life-saving product to the market."

Rami Cobb, BVSC (Hons), MACVSc, senior vice president of pharmaceutical research and development for Fort Dodge Animal Health, says in a prepared statement, "We are extremely pleased to bring ProHeart 6 back to veterinarians and pet owners throughout the United States, as it has safely and effectively protected millions of dogs around the world against potentially deadly heartworm disease." Our first and foremost priority continues to be providing products that help ensure the health and well being of all animals."

"At the time of the voluntary U.S. recall in 2004, we believed it was in the best interest of veterinarians and pet owners to thoroughly address the concerns of the CVM before continuing the marketing of this product in the United States. We have always maintained our confidence in ProHeart 6 and the unique medical benefits it brings to veterinary medicine. Fort Dodge has worked with the CVM to address its questions and feels the scientific data, as well as our vast experience with the product internationally, supports confidence in the product and its return to the U.S. market," Cobb explains.

The product is approved in Australia, Mediterranean regions of Europe and Japan. In the United States, the American Heartworm Society reports that 250,000 pets tested positive for heartworm infection in 2004.

As part of the product’s return to the U.S. veterinary market, Fort Dodge has created a post-marketing surveillance initiative based on similar programs to monitor the safety of human drugs.

This program includes comprehensive veterinarian training, pet owner education, consent forms and specific requirements for the purchase of Proheart 6. Fort Dodge reports this post-marketing initiative allows the company to gather additional product data and maintain active communication with veterinarians and CVM.

Veterinarians who want to purchase ProHeart 6 will be required to register with Fort Dodge Animal Health and participate in a Web-based training program scheduled for Thursday, June 12 at 1 p.m. EST. To register go to www.vetsymposium.com/proheart6. If you are unable to attend this session, veterinarians can log any time beginning Friday, June 13. For more information call the company’s professional services department at (800) 533-8536.