The Food and Drug Administration (FDA) today is announcing the approval of Slentrol (dirlotapide), a prescription drug for the management of obesity in dogs. Slentrol reduces appetite and fat absorption to produce weight loss. A veterinarian will determine whether the dog should be treated, based on the dog’s weight and general health.
“This is a welcome addition to animal therapies, because dog obesity appears to be increasing,” said Stephen Sundlof, D.V.M., Ph.D., director of FDA’s Center for Veterinary Medicine. “Veterinarians are well aware that overweight pets are at a higher risk of developing various health problems, from cardiovascular conditions to diabetes to joint problems.”
Veterinarians generally define a dog that weighs 20 percent more than its ideal weight as obese. Surveys have found that approximately 5 percent of dogs in the United States are obese, and another 20-30 percent are overweight.
Slentrol is a new chemical entity, called a selective microsomal triglyceride transfer protein inhibitor, which blocks the assembly and release of lipoproteins into the bloodstream. The mechanism for producing weight loss is not completely understood, but seems to result from reduced fat absorption and a satiety signal from lipid-filled cells lining the intestine.
To discourage human use, the label of Slentrol includes the standard warning, “Not for use in humans. Keep this and all drugs out of reach of children,” and cites adverse reactions associated with human use, including abdominal distention, abdominal pain, diarrhea, flatulence, headache, nausea and vomiting.
Slentrol is manufactured by Pfizer Inc., New York, N.Y.