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FDA’s Center for Veterinary Medicine Alerts Veterinarians About Problems with Vetsulin®

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FDA’s Center for Veterinary Medicine Alerts Veterinarians About Problems with Vetsulin® to Treat Diabetes in Dogs and Cats

Nov 2, 2009: The Food and Drug Administration’s (FDA) Center for Veterinary Medicine (CVM) and Intervet/Schering-Plough Animal Health are alerting veterinarians and pet owners that Vetsulin®, a porcine insulin zinc suspension used to treat diabetes in animals, may have varying amounts of crystalline zinc insulin in the formulation. Because this Intervet/Schering-Plough Animal Health product is out of specification it could cause a delay in insulin action and an overall longer duration of insulin activity. Products having significant problems with stability can affect the management of chronic diseases. Unstable insulin products can result in unpredictable fluctuations in the glucose levels of diabetic patients. Intervet/Schering-Plough Animal Health is unable to assure FDA that each batch of their product is stable.

FDA and Intervet/Schering-Plough Animal Health request that veterinarians closely monitor their patients receiving Vetsulin® for any changes in onset or duration of activity, or for any signs of hyperglycemia or hypoglycemia. The classic signs of hyperglycemia include increased thirst, increased urination, weight loss and lethargy. The classic signs of hypoglycemia would include disorientation, unsteadiness, weakness, lethargy, and seizures.

While Intervet/Schering-Plough is working with FDA on resolving this issue, supplies may be limited. Therefore, veterinarians should consider transitioning their diabetic patients to other insulin products. In addition, FDA encourages veterinarians to report any adverse events with the Intervet/Schering-Plough Animal Health product to the company through the Technical Services Department at 1-800-224-5318.

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About Author

Devoted pet owner and now, devoted pet editor, Judi worked in traditional offices, keeping the books and the day-to-day operations organized. Taking her dog to work every day for over a decade never seemed odd. Neither did having an office cat. She knows what it's like to train a new puppy and she's experienced the heartache of losing beloved companions. Retired, she currently lives with her spoiled dog and four chickens (who are, interestingly enough, also spoiled).

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