Lantus (insulin glargine injection) Rx
Starting At
$64.99
per pen
Lantus (insulin glargine injection) Rx
$64.99
per pen
Or save an extra 5% on your first order (up to $20) with Autoship*
$61.75
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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 pens 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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Limit 3 vials per invoice.
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We are unable to ship this product to Alaska or Hawaii.
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Pen Needles are for use on insulin pens only. Not for use with insulin vials.
What is Lantus 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 Lantus is Insulin Glargine, a U-100, long-acting insulin. U-100 means that each milliliter of insulin is divided into 100 dosing units.
Why do cats and dogs use Lantus?
- 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 Lantus?
- Lantus should be discarded within 28 days after first puncture.
- Syringes and pen needles are sold separately.
- SoloStar pens can be used with U-100 insulin syringes or pen needles.
- SoloStar pens used with pen needles can only dose whole units. You cannot dial the pen to dispense a half unit.
- Vials should be used with U-100 insulin syringes.
- Store Lantus in the refrigerator. SoloStar pens should be stored at room temperature after first use.
- Lantus is not eligible for free shipping.
- Lantus must be shipped next day in cold packs.
- Lantus cannot be shipped to Alaska or Hawaii.
What problems could my dog or cat have with Lantus?
- 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 Lantus?
- 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.
What is in Lantus?
- The drug in Lantus is Insulin Glargine. Insulin Glargine is also found in Basaglar.
- There are different kinds of insulin classified by how quickly they work, how long they last, or when they have peak effectiveness.
- Insulin Glargine 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?
- Lantus 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 Lantus?
- Dogs and cats may use Lantus for different lengths of time. Please consult your veterinarian if you have any questions.
Review Summary
156 total reviews
Rated 4.87 out of 5 stars
100% of respondents would recommend this to a friend
Ratings Distribution
141 5 star reviews
11 4 star reviews
3 3 star reviews
0 2 star reviews
1 1 star reviews
Most Liked Positive Review
Best deal on best Vet rated cat insulin.
My cat uses insulin twice daily. I recently did more extensive research and confirmed that cats tolerate Lantus better than other insulins (cats have a faster metabolism so most insulin doesn't last as long and causes spiky glucose curves). Lantus lasts about 12 hours in a cat. The pen form is easy to draw from and keeps the insulin lasting much longer than the vial due to the lack of air, which denatures the proteins and spoils the insulin. VetRx has a great deal on this item, allowing a single pen purchase with great packaging for protection and sustained cool temperature and overnight shipping. They also have EXCELLENT customer service. They have found a new long-term customer. I love this kitty dearly and with this she is healthy, happy, and lives a normal life. (ok, except for getting pampered frequently.) :)
Most Liked Negative Review
Works, but is slower to use than a syringe...
You need to view the Lantus web page video on its use, don't bother with You Tube for cats, it doesn't tell you everything that you need to know. You need to have the needle inserted for ten seconds to make sure all of the insulin goes into the skin...it can be hard with a pet. Also, it is calibrated for whole numbers (units), where a pet might need, say, 1 and a 1/2 units, which means you have to use an insulin syringe instead.
Reviews
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I wouldn't have been able afford my cats meds!!!
From UndisclosedComments about Lantus (insulin glargine injection)My cat is a diabetic, hense the insulin. But trying to buy only one pen is hard especially for the "No discounts " for pets!! Thank you sooo much for the offer of one pen!! Some new law mandates the purchase of 5 pens ONLY! That's over $5000.I am so glad I found you!!-
![I wouldn't have been able afford my cats meds!!!]()
Abby! I'm a handful!
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Lantus is the insulin for cats!
From UndisclosedComments about Lantus (insulin glargine injection)This has been my cats insulin for many years now. I adopted him when he was already diabetic, but it hasn't been an easy road with him. He has converted several times, but remains now diabetic. He was to the point he was so unregulated that I had to check his BG twice daily in order to decide how much insulin he needed. When I adopted him he was very sick to the point of being unsure he would pull through. He was 5 pounds, had liver issues, GI issues, and unknown issues. He came home with me on 6 oral medications, special diet and insulin (Lantus). 6 years later...he's now 12 pounds on the special diet and the Lantus. He looks great and feels great!!-
![Lantus is the insulin for cats!]()
Charlie living the life. -
![Lantus is the insulin for cats!]()
Charlie before I brought him home. -
![Lantus is the insulin for cats!]()
Striving as you can tell!
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I will keep buying this product from VetRXDirect!
From UndisclosedComments about Lantus (insulin glargine injection)Works well and I can buy it one pen at a time instead of 5 at a time. -
Definitely will continue buying
From UndisclosedComments about Lantus (insulin glargine injection)I have a diabetic cat and I use a sterile syringe during every draw. The 3ml is a perfect size. It comes nice and cool and perfectly packaged. Shipping is fast and I usually have the product at my door the next business day. -
Exactly what we needed
From UndisclosedComments about Lantus (insulin glargine injection)Easy to order and easy to use per my vet's instructions. Other sites only sell this in 5-packs (which would expire before we could use them) so this is exactly what we need to keep our girl healthy. -
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Exactly What My Cat Needed; Arrived Cool
From UndisclosedComments about Lantus (insulin glargine injection)My cat is taking 1.5 units twice a day. My local drugstore no longer sells individual insulin pens. I was very happy to find Vet Direct. They coordinated with my vet and shipped the pen promptly, with an insulated bag and ice pack, to ensure the pen arrived cool. Great service! -
Easy to use
From UndisclosedComments about Lantus (insulin glargine injection)Easy to use. Work well. -
Great price for an extremely expensive insulin
From UndisclosedComments about Lantus (insulin glargine injection)The insulin is expensive and only good for 28 days, however it is regulating my cat nicely. The price this pharmacy sells lantus for is one of the cheapest I've found. I was concerned about getting insulin delivered to my home since I'm usually working late, but the packaging was substantial and the ice packs were still cold when I got home. -
Mrmcstash needs his insulin and vetrx direct so far has not
From UndisclosedComments about Lantus (insulin glargine injection)because i have poor vision, i use the pen and also a little cheaper rather than huge amount all at once. -
I would buy this product again!
From UndisclosedComments about Lantus (insulin glargine injection)It helps my cat to maintain diabetes better.
Displaying Reviews 21 - 30
Q & A
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Please,what size needles should be used for the Lantus pet syringe??
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The insulin pen needles available through VetRxDirect are universal and will fit the Lantus Solostar Pen (with the exception of the Vetsulin VetPen Needles). The size and length of the needle depends on your veterinarian's recommendation and experience. Please consult with your veterinarian to determine which needle is most appropriate for your pet.
Verified Answer
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Can I use regular syringes with the lantus insulin pen? Or do I need the pen needles ??
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The Lantus pen is designed for use with pen needles. Under the direct guidance of a veterinarian, this medication may also be administered in a different manner.
Verified Answer
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I use Lantus for my cat but she only needs one unit twice a day. Your description says it only is good for 28 days but since I only give her 2 units per day it lasts approx. 3 months. I keep it in the fridge all the time. Does it stay good in the fridge as long as 3 months??
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According to manufacturer full prescribing information, the Lantus 10 mL vial is good for 28 days refrigerated or at room temperature after first use. Lantus 3 mL SoloStar Pen is good for 28 days at room temperature after first use. Do not refrigerate Lantus Pen once in-use (opened). Both the Lantus 10ml vial and the Lantus Solostar state not to be used 28 days after initial puncture or not to be used past their expiration date stamped on the label because the safety and efficacy of the medication can no longer be guaranteed.
Verified Answer
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Does this have a marking for a half a unit??
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The Lantus Solostar Insulin Pen can only be dosed in 1 unit increments, and it does not have measurement for ½ units.
Verified Answer
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Does the pen allow for half doses. My cat only needs 1/2 unit so far?
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The Lantus Solostar Insulin Pen can only be dosed in 1 unit increments, and it does not have measurement for ½ units.
Verified Answer
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The first time you use it (take out if fridge) do you need to let it reach room temperature??
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According to the manufacturer, if your SoloStar is in cool storage, you can take it out 1 to 2 hours before you inject to allow it to warm up. Cold insulin may be more painful to inject.Once you take the SoloStar out of cool storage, for use or as a spare, you can use it for up to 28 days or as long as directed by your veterinarian. During this time the SoloStar can be safely kept at room temperature up to 86°F (30°C). Please consult your veterinarian regarding any further questions or concerns regarding this medication in your cat or dog.
Verified Answer
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Are glucose curves necessary for cats using Lantus insulin??
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I have been a diabetic for 20 years and understand insulin (Humalog, a quick lasting insulin and Lantis, long lasting insulin). We found out two months ago our cat is a diabetic after she lost 4 lbs. in a year (14 to 10 lbs.) and became extremely weak. We administered Novolin N insulin (from Walmart) using U-100 needles for 30 days. Our cat's glucose readings were all over the map. Nothing consistent. Thus we changed to Vetsulin insulin specifically made for pets. We are using U-40 needles, 5 units every 12 hours. Her glucose levels remain high at 400 every 12 hours, average. I have a 60 day spreadsheet I can send you if you would like to see her readings. Question: Can I supplement the Lantis, a long lasting insulin for humans, while using the Vetsulin, a quick acting insulin for pets? Can you please send me your response to my e-mail? ? We appreciate you being there and helping people and their pets. Thank you. Bill?
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Before starting a new insulin for your cat, it is recommended to discuss different options with your veterinarian. Contact your veterinarian to determine a regimen that will work best to control blood sugars for your cat.
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We did exact same thing as above only with our dog. Same results. Vetsulin very high numbers. Our vet recommendation was to switch to lantus once a day.
Community Answer
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Hi I purchased my lantus solar pen on 3/9/18. Kept the insulin in fridge until I First started to use it on3/16/18. However, I did not know, that it did not need to be refrigerated after opening. So since the starting date, after I gave my cat his insulin shot, he gets it twice per day, I have always placed it back in the refrigerator. Because I played it back in the fridge, did I do damage to the lantus insulin?? Is the insulin still as effective by not keeping it out of the fridge, in a shelf. Also tomorrow I have to do a refill. So can you please get back to me, so that I know how to properly handle the pen once opened. Thanking you in advance.?
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According to the manufacturer, the Lantus SoloStar pen should be stored at room temperature for 28 days after the first use and should not be refrigerated after opening. Refrigerating the Lantus SoloStar pen after opening does not damage or decrease the effectiveness of the insulin itself, but there is an increased risk of contamination in the refrigerator because the rubber stopper in the pen does not adequately seal out air contaminants. Please contact your veterinarian with any further questions about how to store and use your cat's insulin.
Verified Answer
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Is this price per pen or per box??
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The Lantus Solostar variation is listed per pen.
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Displaying Questions 1 - 10