Merck Insulin Syringes U-40 29 Gauge x 0.5-in

By Merck
Rated 3.2143 out of 5 stars
Prescription Item
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Merck Insulin Syringes U-40 29 Gauge x 0.5-in, 0.5 mL, 100 syringes slide 1 of 5
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Merck Insulin Syringes U-40 29 Gauge x 0.5-in, 0.5 mL, 100 syringes slide 1 of 5

$45.49Chewy Price
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About This Item

Help deliver your pet’s insulin with ease by using Merck’s U-40 Insulin Syringes. Each box comes with 100 needles that are designed to be used with Vetsulin (porcine insulin zinc suspension) 10 ml. or 2.7 ml. These single-use devices are designed for both canine companions and feline friends and are completely sterile, nonpyrogenic and non-toxic. Choose between a 0.5 mL-29 G x 1/2-inch fixed needle or a 1 mL- 29 G x 1/2 -inch fixed needle.

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

ReviewsWrite a Review

Rated 3.2143 out of 5 stars
28 Reviews
Would recommend to a friend

28 Customer Reviews

Rated 1 out of 5 stars
By Lovemydog on Jan 27, 2022

Not a good syringe

After almost a year of managing insulin injections, my helpers and I are skilled at administering them without hurting the dog. But with the Merck syringes, my dog yelped every time and started to get nervous when she knew the shot was due. Worse, several times I saw insulin dripping from the needle tip just before injection making it impossible to know how much of the dose the dog actually received. A glucose check at the vet showed she wasn't getting enough. I bought another brand of syringe from the vet and have had no more problems. Painless and no drips. Insulin injections are crucial to the health of my dog . A syringe that a) hurts her and b) does assure accurate delivery after being carefully measured is unacceptable. I will not order them again and would advise others not to.

Rated 3 out of 5 stars
By TimB on Jan 10, 2022

Weak quality

As others have mentioned, the quality on these is pretty iffy. They get the job done, but the needles are sometimes not straight to the syringe and there are rough edges on the plastic cap and syringe. I'm a little more than half-way through a box of 100 and had to discard two immediately for quality issues. For the cost, these seem like they should have better quality. Lastly, the syringes are individually wrapped which some may like, but I find to be 'just more garbage'. Less focus on the packaging and more on the quality would be my input.

Rated 1 out of 5 stars
By Kate on Jan 13, 2022

Not very sharp

Not only do these leak from the tip, and don't seem very well made, they also don't seem as sharp as the brand I got from my vet. My cat has started flinching when she gets her insulin injections, which she never did before. Sometimes I can't tell if the insulin actually got into her or just leaked out onto her fur. I'm switching brands.

Rated 1 out of 5 stars
By needlesleaked on Feb 27, 2022

needles leaked

several of these needles leaked around where the needle joins the syringe. had to send them back for a refund. won't buy them again.

Rated 5 out of 5 stars
By Kathefox on Mar 16, 2022

Merck insulin syringes

As always delivered a top quality product. Syringes are individually wrapped. Easy to read.

Rated 1 out of 5 stars
By Sry1218 on Jan 25, 2022

Price changes too much

Why are these 50 one month and then you get defective syringes and then they are 25 and now they are almost 50 in a 4-6 month period..

Rated 1 out of 5 stars
By CATHERDER on Feb 24, 2022


These syringes leak! The insulin squirts from the base of the needles!

Rated 4 out of 5 stars
By RobC on Jan 27, 2022

Needed them

Our dog has diabetes so we needed these. Nice, smooth operation, but way pricey.

Rated 5 out of 5 stars
By MamaT on Dec 21, 2021

Insulin syringes

Very easy to read and the price was reasonable. Thin enough needle, so it doesn't hurt my cat.

Rated 1 out of 5 stars
By WMRMOM on Sep 29, 2021

Terrible quality

Syringes leak horribly. Insulin leaks out onto fur before needle can be inserted. Plunger is awful!! Waste of money but can’t be used to inject insulin properly. What a shameful useless product