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Lantus Insulin

Lantus Insulin
Solostar Pen - Insulin Pen - 3 mL. per pen
10 ml - Vial - 3 mL. per pen
SKU : 937500_-RX
Price: $140.95
Price: $140.95
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Veterinarian Prescription (RX) Required
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  • Use for the treatment of diabetes mellitus in dogs and cats
  • Comes in a vial or in a pen
  • Pen is 3 mL. with 100 units/mL.
  • Cooler item; must ship overnight

Needles sold separately, Please see CarePoint Vet Pen Needles!

During these hot summer months, we highly encourage shipping cooler items on Next Day delivery; we cannot be held responsible for items shipped Express!


Lantus Insulin U-100 is used in the treatment of diabetes mellitus in multiple species including cats and dogs. It comes in various forms and strengths with corresponding syringes for each strength.

Lantus Insulin U-100 are used in the treatment of diabetes mellitus to aid in maintaining a normal glucose level. Insulin is responsible for the proper usage of glucose by cells in the body. It is given by subcutaneous injection. Purchase Insulin syringes separately. Multiple types of Insulin exist, so make sure you match the right type of syringe to your Insulin. Insulin needs refrigeration.

How does Lantus Insulin U-100 work?

Injectable Insulin treats diabetes mellitus by providing a source of the hormone, Insulin when the body produces inadequate amounts. Insulin is necessary for glucose (blood sugar) to be able to enter the cells of the body and be used for energy.

Dosage & Administration

Insulin is a liquid given by injection. Your veterinarian and staff will show you how to properly handle, measure, and give Insulin to your dog or cat. For detailed instructions, see our Patient Information Sheet. Always follow the dosage instructions provided by your veterinarian. If you have difficulty giving the medication, contact your veterinarian. This medication should only be given to the pet for whom it was prescribed. The Lantus vials you are using should be thrown away after 28 days, even if it still has insulin left in it.

Possible side effects of Lantus Insulin U-100

May see hypoglycemia (low blood sugar level) with signs such as weakness, lethargy, shaking, seizures, or coma. Hypoglycemic cats may simply be inactive. May also see hyperglycemia (too much sugar in the blood) where the body increases the blood sugar level. Signs may include increased thirst and urination, vomiting, change in gait, or weakness.

If you miss giving a dose

If you miss a dose by more than two to three hours, contact your veterinarian to determine if you should still give it. If it is almost time for the next dose, skip the one you missed and go back to the regular schedule. Do not give two doses at once.


If you overdose the pet

If you know or suspect your pet has had an overdose, contact your veterinarian immediately.

What should I avoid while giving Lantus Insulin U-100 to my pet

Notify your veterinarian of any other medications, including vitamins and supplements, your pet is taking while your pet is receiving Insulin. Increased risk of low blood sugar may occur if used with anabolic steroids, beta-blockers, monoamine oxidase inhibitors, phenylbutazone, sulfinpyrasone, tetracycline, or salicylates like aspirin. Increased risk of high blood sugar may occur if used with glucocorticoids, thyroid medications, dobutamine, epinephrine, estrogen/ progesterone combinations, or diuretics. Hypoglycemic agents such as glipizide may help lower Insulin requirements, as may chromium picolinate. Use care when starting treatment for thyroid disorders in a diabetic animal, as Insulin needs may change. Changes in potassium levels may occur when using Insulin along with heart medications and/or diuretics.

Who should not take it?

This medication should only be given to the pet for whom it was prescribed. If your pet is not eating, contact your veterinarian before giving Insulin.