UltiCare VetRx Insulin Syringes

UltiCare VetRx insulin syringes are available for both U-40 and U-100 strengths of insulin in a wide range of sizes, and are precision engineered with advanced technology to provide pets with a more comfortable injection.

UltiCare VetRx insulin syringes are also available in the UltiGuard® Safe Pack — the only dual-purpose system that allows you to dispense a new syringe and safely dispose of used syringes without having to purchase a separate sharps container. The patented all-in-one solution is designed for clinic or in-home use.

The UltiGuard Safe Pack contains 100 human-grade syringes and is available in 3/10cc, 1/2cc, and 1cc sizes in a variety of needle gauge and lengths with whole or half-unit markings.

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Cat at Vet with Syringe

Understanding U-40 and U-100 Insulin and Syringes

Your veterinarian will prescribe either U-100 or U-40 insulin for your pet. It is critical that you use the corresponding insulin syringe for proper dosing. While U-40 is often prescribed for cats and dogs, it’s important to know there are two types of syringes used for insulin injections. The U-40 syringe, which will always have a red cap and tends to be smaller in size, and the U-100 syringe, which has an orange cap and is a little larger in size.

What does the “U” mean?

“U”, on the syringe and insulin bottle, refers to units of active insulin.

What is the difference between U-40 and U-100?

U-40 insulin has 40 units of insulin per milliliter of liquid, and U-100 has 100 units of insulin per milliliter of liquid. This means for the exact same liquid volume, U-100 insulin has 2.5 times more units of insulin than U-40 insulin.

Overall, U-40 insulin is a more soluble insulin specifically designed for cats and dogs. If your veterinarian prescribes U-40 insulin, it is essential to use a U-40 insulin syringe for proper dosing. Likewise, if your veterinarian prescribes U-100 insulin, you should use a corresponding U-100 insulin syringe.

UltiCare VetRx U-40 Insulin Syringes

UltiCare VetRx U-40 Insulin Syringes

For use with Vetsulin®, ProZinc® or any U-40 strength of insulin.

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UltiCare VetRx UltiGuard Safe Pack U-100 Insulin Syringes

UltiCare VetRx UltiGuard Safe Pack U-100 Insulin Syringes

For use with Levemir®, Lantus®, Humulin N®, or any U-100 strength of insulin.

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UltiCare VetRx U-100 Insulin Syringes

UltiCare VetRx U-100 Insulin Syringes

For use with Levemir®, Lantus®, Humulin N®, or any U-100 strength of insulin.

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Learn about the UltiGuard Safe Pack

The patented dual-purpose system allows you to dispense a new syringe and safely dispose of a used syringe.

It’s the only all-in-one solution to keep healthcare providers, pet owners, pets, and communities safe. The UltiGuard Safe Pack meets proper disposal guidelines in all 50 states.

Half Unit Marking Insulin Syringes

Half-unit marking syringes are designed for precise and accurate dosing—making it easier to administer small or half-unit doses.

Our half-unit marking syringes are available for U-40 and U-100 insulin, in a variety of needle gauges and lengths.

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Step-by-Step Insulin Injection Guide for Pet Owners

To help simplify the process, we’ve created step-by-step instructions to show you how to prepare and administer your pet’s insulin injections.