UltiCare VetRx Insulin Syringes U-40 12.7mm x 29G with 1/2 Unit Markings, 0.5-cc, 100 syringes

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About This Item

Details

  • Contains 100 human-grade U-40 insulin syringes with half unit markings.
  • Precision engineered with electromagnetic polished triple-bevel needle for a smooth finish.
  • Silicone lubrication provides effortless glide and a more comfortable injection.
  • Bold barrel markings and large barrel flanges allow for accurate dosing and easy grip
  • U-40 syringes are for use with U-40 strength insulin.
  • Available in .3cc and .5cc with 29-guage 1/2-inch (12.7mm) needles and half unit markings.
  • Instructions for Use come in both English and Spanish and packaging includes QR code for educational resources.
  • Includes half unit markings for more precise dosing.

Instructions

FAQ

About UltiCare VetRX

UltiCare VetRx Insulin Syringes

Pets are important members of the family, so naturally, you want the very best for them. Optimize care for your pets with diabetes with UltiCare VetRx Insulin Syringes. They help provide comfortable and accurate dosing of insulin to help you better manage your pet’s diabetes. Available in boxes or in the UltiGuard Safe Pack, a dual-purpose system that dispenses new syringes and provides safe disposal for used syringes all in one, so you don’t have to hassle with a separate sharps container.

Choosing the Right Insulin Syringe

Your veterinarian may prescribe U-40 or U-100 insulin for your pet, and it is critical to use the corresponding syringe for proper dosing.

U-40 Insulin Syringes

The “U” refers to units of active insulin, and U-40 insulin has 40 units of insulin per milliliter of liquid. This more soluble type of insulin is designed specifically for cats and dogs, and you must always use a U-40 insulin syringe, which is smaller and has a red cap, to administer it.

U-100 Insulin Syringes

U-100 insulin has 100 units of insulin per liquid milliliter, so it has 2.5 times the insulin as U-40 insulin by volume. If your vet prescribes this type of insulin, it is essential to administer it using U-100 syringes, which are larger and have an orange cap, to ensure proper dosing.

The Quality You Expect

From plunger to tip, UltiCare VetRx insulin syringes are precision engineered to provide superior comfort for your pet.

Human Grade

UltiCare VetRx insulin syringes are human grade, premium quality syringes made for use with U-40 or U-100 insulin.

Superior Comfort

The tri-bevel tip is micro polished and silicone lubricated for easy insertion and effortless glide.

Easy and Accurate Dosing

A clear barrel with bold scale markings and large barrel flanges provides accurate dosing and a good grip for control.

Step-by-Step Guides

UltiCare VetRx offers a suite of diabetes care resources to help you manage your pet’s diabetes with confidence.

Designed With Safety in Mind

The UltiCare VetRx UltiGuard Safe Pack allows you to easily dispense premium quality UltiCare syringes and dispose of them safely once you’re done. Each UltiGuard Safe Pack contains 100 insulin syringes. After using a syringe, simply pop it in the top, then drop and roll it safely out the way. There’s no need to spend more on a separate sharps container with this convenient, affordable solution that helps keep your home and community safe.

An All-In-One Solution

The UltiGuard Safe Pack features an upper and lower chamber. The lower chamber dispenses new insulin syringes, while the upper chamber provides a safe place to discard used ones. After depositing a used syringe in the top, turn the wheel on the side of the container to secure it safely away. Once you’ve used and disposed of all the syringes in the Safe Pack, follow state and local guidelines for proper disposal.

About UltiCare VetRx

UltiCare VetRx optimizes care for pets with diabetes. They make premium insulin syringes you can order on their own or as part of the UltiGuard Safe Pack, a convenient all-in-one dispensing and disposal solution that helps keep healthcare providers, pet owners, pets, and communities safe from accidental needle stick injuries. UltiCare VetRx insulin syringes are made specifically for use with either U-100 or U-40 insulin and come in 3/10cc, 1/2cc and 1cc sizes.

Shop UltiCare VetRx
4.7
Rated 4.7 out of 5 stars
1282 Ratings

Customers Mention

Chewy identifies key considerations with the help of artificial intelligence and our veterinarians.

Ease of Use

88% Positive

Effectiveness

85% Positive

Ingredients

90% Positive

Long-Term Benefits

83% Positive

417 Customer Reviews



Always consult a veterinarian about your pet’s health needs. Customer reviews should not be used as medical advice.

Rated 5 out of 5 stars
By Tilly on Nov 6, 2025
Top 1000 Contibutor

Great Syringe but a bit big for little pup

My vet said to get these. Months later, I took my pup to an internal medicine vet to help manage her diabetes. The internalist prescribed another insulin, Toujeo,

My vet said to get these. Months later, I took my pup to an internal medicine vet to help manage her diabetes. The internalist prescribed another insulin, Toujeo, to use with Vetsulin. Toujeo is a pen and needs needles, not syringes. The Internalist prescribed needs that are 32G. At the pharmacy, I learned that 32G are much thinner needles. I consulted my vet and found the 30G syringes on Chewy, which are what I use now instead of these 29G needles. The 30G is so much thinner, and my 14 lb pup is so much more comfortable with getting her insulin since she now gets 2 injections (Toujeo and Vetsulin) in the morning and 2 at night. If you have a small pup, look for the 30G needles on Chewy.


Rated 5 out of 5 stars
By Maggi on Dec 12, 2025

Economical and Easy to use

Much better price than the vets office. It has 1/2 units which make it easy to be accurate. I think in 2 years I've used this product I only had 1 bad syringe

Much better price than the vets office. It has 1/2 units which make it easy to be accurate. I think in 2 years I've used this product I only had 1 bad syringe. That's great for this product. I would recommend these.


Rated 5 out of 5 stars
By Sharon on Nov 19, 2025

Half Unit measure line syringes

My cat's insulin dosage was recently changed to 1/2 unit per dose. My vet carried only the full unit measurement syringes so I was happy to learn that Chewy's pharmacy

My cat's insulin dosage was recently changed to 1/2 unit per dose. My vet carried only the full unit measurement syringes so I was happy to learn that Chewy's pharmacy stocked syringes with a half-unit measurement line. This makes it much easier to obtain the exact 1/2 unit dose.


Rated 1 out of 5 stars
By Richard on Dec 9, 2025

Where's the rest of our order? This should not be marked as deliverd

We are missing well over $100 worth of food. Only a small portion of our order was delivered. It's been almost 3 days since the first package left and I have npt

We are missing well over $100 worth of food. Only a small portion of our order was delivered. It's been almost 3 days since the first package left and I have npt received and emails with updates or explanation.


Rated 5 out of 5 stars
By Cheryl on Jan 7, 2026

Great service and delivery

I ordered these and they weren’t the correct ones but the pricing, delivery and customer service from chewy was excellent!!!

I ordered these and they weren’t the correct ones but the pricing, delivery and customer service from chewy was excellent!!!


Rated 5 out of 5 stars
By Robert on Jan 5, 2026

Finally got correct size

It wasn't your fault, but after a couple times you guys persevered. Thanks. I'm grateful for your team

It wasn't your fault, but after a couple times you guys persevered. Thanks. I'm grateful for your team


Rated 5 out of 5 stars
By Stephanie on Jan 7, 2026

Nice

Great syringes, very few faulty ones, needles nice and sharp so his shots hardly hurt at all. 5 stars

Great syringes, very few faulty ones, needles nice and sharp so his shots hardly hurt at all. 5 stars


Rated 2 out of 5 stars
By CHARLA on Oct 15, 2025

Wrong syringe markings

I was ordering whole unit markings as I had the first time I had ordered these syringes. Received half-unit markings and for me, they were difficult to use. Have

I was ordering whole unit markings as I had the first time I had ordered these syringes. Received half-unit markings and for me, they were difficult to use. Have since ordered again and they were changed back to whole units. Fine!


Rated 5 out of 5 stars
By Leslie on Dec 7, 2025

Quick delivery with care

This medicine is life saving for my pet. I got reminded to fill before the busy holiday season due to shipping concerns.

This medicine is life saving for my pet. I got reminded to fill before the busy holiday season due to shipping concerns.


Rated 5 out of 5 stars
By Dustin on Jan 7, 2026

The time to receive this was amazing.

Chewey did all the work to get the prescription and deliver in such a short time period.

Chewey did all the work to get the prescription and deliver in such a short time period.