Vetpen 29 Gauge 12 mm Needles for Dogs & Cats, slide 1 of 1

Vetpen 29 Gauge 12 mm Needles for Dogs & Cats, 100 count

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Help deliver your pet’s insulin with ease by using VetPen’s 29 Gauge 12 mm Needles for Dogs & Cats. This box comes with 100 VetPen needles that are designed to fit VetPen 8 and VetPen 16 insulin delivery pens. These single-use devices are designed for both canine companions and feline friends to help them get more accurate doses consistently. And the needles are individually packaged to help keep them sterile and keep you and your family safe.

Proudly sourced directly from the manufacturer or their approved distributor. Guaranteed genuine and backed by the manufacturer.


VetPen Needles are for use with VetPen 8 and VetPen 16 automatic insulin delivery pens, for animal use only.


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. 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. Over-dosage 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 the package insert for full information regarding contraindications, warnings, and precautions. Keep out of reach of children.

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  • Item Number
  • For Use With
    Dogs & Cats
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    Devices & Supplies
Recommended Dosage

Use according to your veterinarian's instructions.

Storage Instructions

Needles should be kept out of the reach of children and pets.


Can VetPen needles be reused?

No. Sterile needles are designed for single use only. A new needle should be used for each injection. A needle may become blunt or bent after use, which may cause the pet discomfort. The needle should be removed with the needle remover and safely disposed of immediately after use.

What if no insulin drips actively or squirts from the needle after priming or preparing for use?

The needle is blocked. To fix, replace the needle on VetPen with a new one. Remember to use a new needle for each injection. The needle is designed for single use only.

What if insulin drips actively from the needle after injection?

This may be a sign that the needle may have been removed before the injection was completed. If the VetPen needle is removed from the skin too early, the pet did not receive its full insulin dose. This may also be a sign that air bubbles may still be present. Priming process (removing air bubbles) should be reviewed.

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