PetTest U-40 Syringes, 31 Gauge x 5/16-in

Prescription Item

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In stock
Count: 100 syringes
Size: 0.3-cc
  • Click to select 0.5-cc In stock

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PetTest U-40 Syringes, 31 Gauge x 5/16-in are some of the thinnest, featuring 31-gauge needles. This helps make injection more comfortable for your furry family member compared to thicker 29-gauge U-40 needles. The length of the 5/16” needle also helps reduce the risk of a painful injection to your pet’s muscle. These syringes are specifically designed to be used with all U-40 insulins. Both sizes, the 0.3-cc and 0.5-cc have easy-to-read ½ unit marking for accurate dosing every time. The needles are extra sharp and lubricated and have a tri-bevel tip for added comfort, while the extra-wide finger grips allow for unmatched control. These syringes come with protective needle and plunger caps.


Syringes are primarily used to administer insulin to dogs, cats, and other animals.


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. For patients who mix two types of insulin, do not change (a) the order of mixing that the physician has prescribed or (b) the model and brand of the syringe without first consulting your physician or pharmacist. Failure to heed this warning can result in dosage error

See all items by PetTest

  • Item Number
  • Generic Name
    Insulin Syringes
  • For Use With
    Dogs, Cats, Horses, and Small Pets
  • Common Brand Name(s)
  • Administration Form
  • Product Form
  • Health Condition
  • Drug Type
Recommended Dosage

Always consult with your veterinarian first before using syringes/needles. 1. To expose plunger, remove large orange cap 2. To expose needle, pull small orange cap STRAIGHT off, being careful not to bend needle 3. To measure correct dosage, align top edge of plunger tip with your dosage mark on the syringe scale 4. Use syringe ONCE only. To prevent misuse after injection , destroy syringe and needle

Storage Instructions

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


What are some of the Key Benefits of PetTest U-40 Syringes, 31 Gauge x 5/16 in?

*Large, Clear, Easy to Read ½ Unit Markings

*Fine, Sharp, Extra-Lubricated Needles

*Tri-Bevel Tip for Greater Comfort

*Extra Wide Finger Grips

*Protective Needle and Plunger Caps

Rating: 4.1 of 5 stars 6 Reviews 6 Reviews 4.2 out of 5 Stars

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83% Recommend

83% of reviewersrecommend this product

Rating: 4.1 of 5 stars 4.2 / 5

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6 Reviews

Showing 6 Reviews

  • 4 out of 5 stars

    Great, except one thing..

    By Cutiekitty13 on Feb 14, 2021

    These syringes are the best I've used yet. The needle pierces easily through the skin without having to push too hard which makes the process a little faster and easier. The only thing I would change is the packaging. I'd rather have them individually wrapped so they stay sterile until each syringe is opened, instead of 10 needles in one pack. Other than that, I will continue to purchase these syringes.

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  • 5 out of 5 stars

    My toy thanks me for these!

    By Poodles on Feb 19, 2021

    Great syringe, used traditional recommendation by vet for 1/2 inch needles. He did not like that and we had a time giving the insulin. Now he doesn’t even feel the injections. Makes all our day, twice a day, so much better. I highly recommend for small, sensitive dogs!

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  • 5 out of 5 stars

    Great Alternative for little guys

    By Gramps on Mar 26, 2021

    This was a.Great option for our dog . Shorter and thinner gauge needle is better suited for the smaller breeds

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  • 1 out of 5 stars

    Worse than human suringes

    By Kisa on Feb 8, 2021

    We were unable to use there syringes because needles are not sharp enough compare to human syringes we used before for our cat.

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  • 5 out of 5 stars

    Love you guys!!!!!

    By Donna on Mar 31, 2021

    Awesome every time. Fast shipping, great customer service! Thank you

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  • 5 out of 5 stars

    Great product!

    By Dicoh on Jan 13, 2021

    It's so easy to order the products from, and fast!!

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