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Vetsulin® (porcine insulin zinc suspension)

The only veterinary insulin approved for both dogs and cats is also the first to offer clients a choice in how they administer it.

Vetsulin is the only veterinary product for the management of diabetes mellitus in both dogs and cats. In addition, only Vetsulin allows you to offer clients 2 administration options.

The traditional method.

  • Standard option widely used in diabetic pets
  • A cost-effective option for pets requiring large doses
Image of Vetsulin vial

VetPen®—the first insulin pen designed exclusively for diabetic pets.

  • Convenient for all lifestyles
  • A reassuring option for owners of newly diagnosed pets
See how VetPen is used
See how VetPen is used

This website offers important information on Vetsulin, VetPen, details on managing canine and feline diabetes mellitus, and valuable tools and resources for your clinic. If you have specific questions or would like additional Vetsulin or diabetes management information, simply contact Merck Animal Health diabetes professionals.

Important Safety Information

Vetsulin should not be used in dogs or cats known to have a systemic allergy to pork or pork products. Vetsulin is contraindicated during periods of hypoglycemia. Keep out of reach of children. As with all insulin products, careful patient monitoring for hypoglycemia and hyperglycemia is essential to attain and maintain adequate glycemic control and prevent associated complications. Overdosage can result in profound hypoglycemia and death. The safety and effectiveness of Vetsulin in puppies and kittens, breeding, pregnant, and lactating dogs and cats has not been evaluated. See package insert for full information regarding contraindications, warnings, and precautions.