Insulin glargine (Lantus) for dogs and cats
A long-acting human insulin used mostly in diabetic cats. [1]
Key facts
| Generic name | Insulin glargine |
|---|---|
| Common brand names | Lantus, Basaglar |
| Used in | Dogs & Cats |
| Type | Diabetes |
| Prescription? | Prescription |
| Typical US price | $30–$150 a month [2] |
What it's used for
A long-acting human insulin used mostly in diabetic cats. [1]
How it works
It releases slowly from under the skin to keep blood sugar steadier. [1]
Side effects and cautions
Common side effects: Skin lumps at injection sites. Low blood sugar is the main danger. [1]
Use with care: Not for pets that aren't eating or have low blood sugar. Ask your vet before changing insulin or syringe type. [1]
Call your vet right away if your pet has trouble breathing, facial swelling, hives, collapse, or any side effect that is severe or getting worse.
What it costs
- Insulin for a dog (any type): $30–$150 a month [2] see the cost guide
- Insulin for a cat (any type): $50–$150 a month [3] see the cost guide
Prices come from public owner-bill reports and vary by clinic, pharmacy, pet size and dose.
Insulin glargine (Lantus) FAQ
What is Insulin glargine (Lantus) used for in dogs and cats?
A long-acting human insulin used mostly in diabetic cats.
What are the side effects of Insulin glargine (Lantus)?
Skin lumps at injection sites. Low blood sugar is the main danger.
Does Insulin glargine (Lantus) need a prescription?
Yes. It needs a prescription from a veterinarian.
How much Insulin glargine (Lantus) should I give my pet?
Only your veterinarian can tell you. The right dose depends on your pet's weight, health and other medicines, so we don't list doses. Never give a pet a medicine prescribed for a person or another animal without asking your vet.
Related medications
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This page is general information for pet owners, not veterinary advice. Talk to your vet about your own pet.