Vetsulin Rx
Starting At
$21.85
per cartridge
Vetsulin Rx
$21.85
per cartridge
Or save an extra 5% on your first order (up to $20) with Autoship*
$20.76
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Guaranteed lowest authorized price. Learn more.
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Usually ships the same weekday before 3pm CT with veterinary approval.
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Requires veterinary authorization.
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Your pet's veterinarian will provide directions for use.
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Additional cold packed next-day service shipped Mon-Thurs required.
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Limit 3 vials per invoice.
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We are unable to ship this product to Alaska or Hawaii.
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Additional cold packed next-day service shipped Mon-Thurs required.
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We are unable to ship this product to Alaska or Hawaii.
What is Vetsulin Insulin for Dogs and Cats?
- Insulin is a hormone that is naturally produced by the pancreas to convert sugar (glucose) in the blood to energy for the body.
- Insulin therapy is prescribed to dogs and cats with diabetes. Diabetic animals are either unable to produce their own insulin or cannot use it properly.
- Insulin helps treat diabetes in cats and dogs by normalizing the glucose level in the blood.
- The insulin in Vetsulin is Porcine Insulin Zinc Suspension, a U-40, long-acting insulin. U-40 means that each milliliter of insulin is divided into 40 dosing units.
- Vetsulin 1/2cc syringes hold up to 20 units of insulin.
- Vetsulin 1cc syringes hold up to 40 units of insulin and are best for dosing high amounts of insulin.
- Vetsulin VetPen cartridges can be used with the Vetsulin VetPen or used as vials.
Vetsulin VetPen Starter Kits
- VetPen is an automatic insulin delivery pen device that is designed for the injection of insulin in diabetic dogs and cats.
- The VetPen uses a multi-dose insulin cartridge.
- The dose is selected by turning a dial on the bottom of the pen for a more accurate and convenient method of dosing.
- The VetPen uses replaceable, single-use pen needles for injection under the skin.
- The VetPen comes in a starter kit with everything needed except for the insulin.
- The starter kit is available in two size: The VetPen 8 is for small doses and the VetPen 16 is for larger doses.
- The VetPen is designed for use only with VetPen Needles and Vetsulin cartridges.
- VetPen sizes: The VetPen 8 can give 0.5 to 8 units in half-unit increments. The VetPen 16 can give 1 to 16 units in one-unit increments.
- VetPen Starter Kit contents: 1 VetPen, 1 Travel Pouch, 1 Needle Remover, 1 Dose Selector Applicator, 1 Release Button Extension, 28 VetPen Needles, 1 Instruction Manual.
Why do cats and dogs use Vetsulin?
- Insulin is prescribed to dogs and cats with diabetes mellitus to help lower their blood sugar.
- Insulin is an ongoing, supportive treatment for diabetes.
What else should I know about Vetsulin?
- Vetsulin VetPen Cartridges and Vials should be discarded within 42 days after first puncture.
- Syringes are sold separately.
- Vetsulin 1/2cc syringes hold up to 20 units of insulin.
- Vetsulin 1cc syringes hold up to 40 units of insulin and are best for dosing high amounts of insulin.
- Vetsulin VetPen cartridges can be used with the Vetsulin VetPen or used as vials.
- Vetsulin VetPens require VetPen needles for administration.
- Vetsulin vials should be used only with U-40 insulin syringes.
- Store Vetsulin Insulin in the refrigerator.
- Vetsulin is not eligible for free shipping.
- Vetsulin must be shipped next day in cold packs.
- Vetsulin cannot be shipped to Alaska or Hawaii.
- There is a limit of 5 Vetsulin vials maximum per shipment.
What problems could my dog or cat have with Vetsulin?
- Insulin overdoses may be fatal. Contact your veterinarian immediately if your dog or cat is not acting normally.
- Signs of low blood sugar include weakness, depression, lack of energy, sluggishness, stumbling when walking, behavior changes, muscle twitching, seizures, or coma. It is a medical emergency if your cat or dog is unconscious or having a seizure.
How do you use Vetsulin?
- Insulin works best when given regularly - at the same times each day and in the same way regarding feeding, such as always after a meal. Follow your veterinarian's directions.
- Double check the dose every time before you give the insulin to prevent overdoses.
- Keep a source of easily given sugar, such as corn syrup or honey, on hand at all times in case of low blood sugar. Follow your veterinarian's suggestions.
- Vetsulin Insulin should be shaken well before use.
What is in Vetsulin?
- The drug in Vetsulin Insulin is Porcine Insulin Zinc Suspension.
- There are different kinds of insulin classified by how quickly they work, how long they last, or when they have peak effectiveness.
- Vetsulin is a type of long-acting insulin. Long-acting insulin reaches the bloodstream several hours after injection and tends to lower blood sugar levels for up to 24 hours.
Will I get what I see in the picture?
- Vetsulin is a brand name. You will receive the exact brand that you request.
Is it important for my dog or cat to finish all of the Vetsulin?
- Dogs and cats may use Vetsulin for different lengths of time. Please consult your veterinarian if you have any questions.
Who makes Vetsulin?
- Vetsulin products are distributed by the manufacturer Merck.
Review Summary
77 total reviews
Rated 4.66 out of 5 stars
95% of respondents would recommend this to a friend
Ratings Distribution
67 5 star reviews
3 4 star reviews
2 3 star reviews
1 2 star reviews
4 1 star reviews
Most Liked Positive Review
Same product my vet sells - only MUCH cheaper!
My Manchester Terrier is diabetic. I also bought the U-40 needles which are the identical brand I buy from the vet - only MUCH less inexpensive.
Most Liked Negative Review
Did not work for my cat
Tried Vetsulin on my diabetic cat for about 5 months. Unfortunately, it stopped working for her and I had to switch to ProZinc. Also used the VetPen for awhile but did not trust the dosage. It Always left a drop or two on the needle -- and that is a LOT when giving small units. I went back to syringes.
Reviews
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Very pleased with service!
From Chicago, IlComments about VetsulinMy dog was diagnosed with diabetes about six months ago. She is on Vetsulin and I use the Vetpen with insulin cartridges. Upon diagnosis, I purchased the insulin and needles through my veterinarian and it was very expensive. It came time for a refill and I decided to try VetRXDirect and order the needles online. The cost was quite a bit lower than my vet, but I was concerned I would not get the needles in time. I called and spoke with customer service, and they advised the shipment was going out that day. I needn't have worried because I received my order in just a few days. I will now order the insulin through VetRXDirect with confidence and plan on being a regular customer. -
Great product, very easy to use.
From Tacoma, WAComments about VetsulinVery easy to use and controls her blood sugar very well. -
Will buy again
From OhioComments about VetsulinGreat product for diabetes. -
Easy fast service
From Walnut Grove, MnComments about VetsulinI use a vet pen and this company has the cartridge readily available had it delivered within a few days it had a long dated exlpire date . packaged very well with ice packs and cooler. Completely satisfied -
Same product my vet sells - only MUCH cheaper!
From Palm Desert, CAComments about VetsulinMy Manchester Terrier is diabetic. I also bought the U-40 needles which are the identical brand I buy from the vet - only MUCH less inexpensive.-
![Same product my vet sells - only MUCH cheaper!]()
Sooooo spoiled
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I would buy this product again and will
From Mission Viejo, CAComments about VetsulinMy dog is insulin dependent. I have to order this every 3 weeks. It is a lifesaver because of time and money savings. -
Awesome product
From HawaiiComments about VetsulinAwesome for my dog.-
![Awesome product]()
my baby. my cuddles
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Still getting the hang of it.
From ConnecticutComments about VetsulinI just started using the VetPen with Vetsulin on my cat about 2 weeks ago. The reason I decided on VetPen is that my cat uses a small dose of insulin and I would only get half way through the 10mL bottle before it expired and I had to throw it away. That means the insulin was costing me TWICE the price, as I had to waste so much. With Vet Pen, the cartridges come in small volumes at roughly the same price per mL. (If not for the waste, I would have stuck with syringes.) The video was very helpful in setting up and learning how to use the pen. My one complaint about it is that I ALWAYS have one or two drops on the end of the needle when I finish the injection. I have held the needle in her for the required 5 seconds as the instructions indicate (and a few times for 10 seconds!). Nothing seems to help the problem. I'm a little puzzled as I am good at injections. Otherwise, the pen is handy and I'm hoping effective. Her next blood tests will tell. -
3rd insulin for diabetic dog.
From ChicagoComments about VetsulinAfter trying 2 (3?) human insulins for our diabetic dog, we've found this porcine insulin to be more effective thus far. She is difficult to stabilize and a small increase/decrease affects her so we're methodical with changes. We have used this for about 3 years. -
I will buy this again
From Tacoma, WAComments about VetsulinThe pen is very easy to use, my cat doesn't even feel it & it controls her blood sugars very well. The con is that with the insulin cartridge there is always a big space between the insulin & the plunger and getting rid of all of that air can be difficult and you can sometimes end up wasting some (or a lot) of the insulin before you get rid of the air bubble.
Displaying Reviews 41 - 50
Q & A
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Trying to decide between the Vetsulin Vial and Cartidge option for cost. Approximately how long would one cartidge last if my cat is on 2IU per day (1IU per dose)??
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The manufacturer suggests using the vials and cartridges within 42 days of the first vial puncture. Each Vetsulin 10ml will contain a total of 400 units of insulin, while each Vetsulin 2.7ml cartridge will contain a total of 108 units of insulin. Based on the information provided, the Vetsulin vials could last 200 days, and the cartridges could last 54 days for your cat, which is longer than the manufacturer suggests. It is best for you to consult with your veterinarian regarding the use of Vetsulin past the manufacturer’s recommendation.
Verified Answer
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Your not any cheaper. Why would I bother switching. I really thought I was going to save money since I need a new bottle every two weeks and I'm not working. I'll stick with Chewy. Can I cancel my profile? Thanks?
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I have a written prescription from my vet for Vetsulin. How do I get that prescription to you so I can order??
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Our typical process involves a customer creating an account, adding pet and veterinarian information to their account, placing an order, and then selecting the appropriate vet and pet for each prescription request. After an order is placed, we fax a request for a prescription to the veterinarian. The vet clinic can call or fax in the approval to fill the order. Some clinics cannot work with outside pharmacies, in which case they will provide paper prescriptions to clients. Our customers can mail us these original signed prescriptions if clinics cannot fax or call in prescriptions. For more detailed instructions or further questions, please email [email protected]
Verified Answer
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Insulin is temperature sensitive. How is it shipped ??
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VetRxDirect requires all insulin, including Vetsulin ship with Next Business day shipping on ice. In periods of extreme heat, it may be considered to have insulin products delivered to an alternate location, such as a place of work, in order to ensure immediate retrieval and refrigeration. Acquiring the product locally could be considered during times of extreme heat.
Verified Answer
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The dose no longer resets to zero (dial 7 give injection and resets to 3, meaning my dog is not (?) getting 7 units of insulin maybe 4 maybe not); Is this pen warranted? I have tried several times to correct the defect, even disposed of half empty vial and started with full primed vial. I have owned the pen for approximately 4 months,( I know how to use it). I have read the troubleshooting (4 scenarios- none apply). Should I ask for a new pen (warranty) or send for repair.. thank you?
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What kind of pen do you mean? My dr gives me regular ones but charges alot.$50.00 for 100 needles. Olus the insulin for the cat is close to $100. I've always just gotten all of this from the vet but then people started telling me that if I had a prescription I could get it way cheaper so I got a prescription and now I'm searching.
Community Answer
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Do the Vetsulin VetPen Needles work with Lantus SoloStar insulin pen??
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At this time, there is no evidence to support the use of VetPen Needles with Lantus Solostar® Pen, Please contact your veterinarian for further assistance.
Verified Answer
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Are the vetsulin syringes made in the U.S.A.??
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Vetsulin syringes are manufactured by Merck Animal Health in Germany. Please see the package insert or contact your veterinarian for more information about this product.
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Does this require a written vet prescription??
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Yes, Vetsulin requires a prescription from your veterinarian.
Verified Answer
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How long does this last and is it easier than other insulin injections I'm all new to this just found out dog had diabetes?
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Insulin can be drawn from a vial with a needle and syringe, or injected from a pen device that contains an insulin cartridge. Vetsulin comes in 10 mL vials and cartridges for the VetPen. Vetsulin must be used within 42 days after it is opened.
Verified Answer
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How many shots do I get out of a vial if I'm using 8 units twice a day??
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A 10ml vial will last about 25 days with those dosing instructions. Thank you, VetRxDirect
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Displaying Questions 1 - 10