Insulin Syringes/Needles U-40 29 Gauge x 0.5-in with Sharps Container

Prescription Item

  • Price:


In stock
Count: 100 count
  • 100 count In stock
Size: 0.3-cc
  • 0.3-cc In stock
  • 0.5-cc In stock
  • 1-cc In stock

This item requires prescription approval. Details

Medications ship separately. Delivery times may vary. Details

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Insulin Syringes/Needles U-40 29 Gauge x 0.5-in are used for the injection of U-40 (40 units per ml) insulin in pets with diabetes. However, it’s important to note that more than one concentration of insulin exists, so be sure that the syringe used matches the type of insulin prescribed for your pet. These insulin syringes also come with a sharps container for proper disposal.


Syringes are primarily used to administer insulin to dogs and cats.


Used sharps should be immediately placed in a sharps disposal container. FDA-cleared sharps containers are generally available through pharmacies, medical supply companies, health care providers and online. These containers are made of puncture-resistant plastic with leak-resistant sides and bottom. They also have a tight fitting, puncture-resistant lid. If an FDA-cleared container is not available a heavy-duty plastic household container, such as a laundry detergent container can be used as an alternative.

See all items by Insulin Syringes

  • Item Number
  • Dosage Measure

    Use according to your veterinarian's instructions.

  • Generic Name

    Insulin Syringes

  • For Use With

    Dogs & Cats

  • Health Condition


Storage Instructions

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


What are U-40 syringes?

These syringes are prescribed by your veterinarian in order to deliver insulin to your pet. Insulin syringes list volume as units. U-40 syringes are used to administer ProZinc insulin for cats. Make sure you are using the correct syringe for the insulin your pet needs. Incorrect syringe sizes will result in incorrect insulin dosing. Only your veterinarian can write a prescription for U-40 syringes.

What are the benefits of U-40 syringes?

  • Sterile.
  • Latex-free.
  • Available with or without sharps container allowing for easy disposal.
  • Can use for insulin injections at home under the supervision of a veterinarian.

How does this product work?

The U-40 Syringe is a high quality, sterile, insulin syringe that is used to administer insulin to diabetic pets, primarily cats. It is primarily used to administer ProZinc insulin. Make sure your veterinarian teaches you how to give insulin injections properly prior to use. Different syringes are necessary for different types of insulin so make sure you are ordering the correct insulin syringe for your pet. U-40 syringes are available with a prescription from your veterinarian. Make sure you dispose of insulin syringes properly in a sharps container. Do not throw away in the regular trash.

Customer Reviews
14 Reviews 14 Reviews 4.7 out of 5 Stars

93% Recommend

93% of reviewersrecommend this product

4.7 / 5

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  • Great size for smaller doses

    By on

    After trying the 1cc and 0.5cc size U-40 needles for my cat's insulin injections, I found this 0.3cc size to be perfect. Each cc is marked, making the dosing very simple to follow. I like the disposal container as well. The needles come out in 10-packs from the bottom of the container while the used syringes are safely deposited through the top of the container, and the entire container, once all the syringes are used, can be taken to your vet for disposal.

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  • Exactly what i wanted and needed!

    By on

    I bought this needle kit for my diabetic cat. I had recently changed vets because of a move and i did not like the needles they sold me. These needles and the sharps container are almost exactly what i used to get from my previous vet. I get a more accurate dosage of insulin with this particular type of needle and once spent they are safely contained after their usage. They were less expensive than what i was using before, too, with both vets...

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  • Great Product and Easy to Use

    By on

    These syringes are very easy to use with ProZinc insulin. Our cat has been diabetic for many years and we’ve found these to be the easiest to administer his 3 units 2x a day. The container is great and keeps used syringes secure. We always take our box to the vet or other recycle location to ensure the syringes are properly handled and don’t end up in a landfill or other. Chewy is always great - price and shipping time are the best!

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  • Great Price, Easy Process

    By on

    One of our cats was recently diagnosed with diabetes requiring insulin shots twice a day. The savings on both the insulin and the needles was almost $20.00 as compared to buying these products through the Vet, so I was delighted! The process of getting the needed script from our Vet plus a very speedy delivery made the whole purchase very satisfactory.

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  • Great purchase

    By on

    I searched all over my town to get these syringes with no luck. I found these on Chewy, after my vet verbalized the script over the phone they mailed them immediately. I didn't realize that the container was to dispose of the syringes, love this! Just put it in the top, twist the dial and the syringe is safely disposed of! Great product for a great price.

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  • Very Impressed

    By on

    The insulin needles are good quality, the same as other brands that I had ordered in the past. I will continue to order these from because of the fast shipping. Even with verifying with my vet I had my product with 2 days. Great service

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  • Great syringes and a great idea!

    By on

    I've had diabetic dogs in the past, and properly disposing of the syringes was always difficult. When my dog was recently diagnosed with diabetes my vet gave us these syringes. How cool is it that it has a built in way to dispose of the syringes! It's so easy and convenient. I would absolutely recommend this product!

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  • Insulin syringes

    By on

    It was fast, it was easy.... The only thing now, my cat may be able to ween off insulin, and if so.......... I now have 200 syringes that I don't need!!! Will have to check on return policy.

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  • do not buy

    By on

    This syringe performs poorly. The needle will bend just puncturing the medicine bottle. The plunger disconnects when trying to draw down medicine. Waste of money.

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  • Satisfaction

    By on

    After some initial apparent miscommunications Chewy far exceeded anything I might have desired, they far exceeded my expectations.Five stars!

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