Key takeaways
Lantus is a long-acting insulin that can be purchased as a prefilled injection pen (Lantus SoloStar) or in a vial for use with a syringe and needle.
Without insurance or other prescription assistance programs, Lantus SoloStar can cost an average of $80 per 3 mL of 100 units/mL pen, and a 10 mL vial (1,000 units) of Lantus can cost $285.
Many commercial insurance and Medicare plans cover Lantus, but people without insurance coverage can reduce their cost by switching to generic insulin glargine products, using SingleCare discount coupons, and comparing pharmacy prices.
Lantus (insulin glargine) is a brand-name long-acting insulin that helps control blood sugar levels in people with Type 1 or Type 2 diabetes mellitus. Lantus is taken as a subcutaneous injection once per day at the same time each day using either a Lantus prefilled injection pen (Lantus SoloStar) or by using a syringe and needle with a Lantus vial. Lantus is an expensive insulin for people without insurance, but insulin glargine can be purchased as a generic. Other ways to save money include SingleCare discount coupons, price shopping, or patient assistance programs.
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Is Lantus covered by insurance?
Most insurance and Medicare Part D plans cover a Lantus prescription. Your plan’s drug formulary is the go-to reference to determine if Lantus is covered, and the plan’s summary of benefits should list how much of a copay and deductible would be required.
How much does Lantus cost without insurance?
The cost of Lantus without insurance is about $285 for one 10 mL vial containing 1000 units of insulin glargine. The Lantus SoloStar pen price without insurance averages $80 for one 3 mL SoloStar injection pen containing 300 units of insulin glargine. The monthly cost will depend on the dosage prescribed. A dosage of 10 units a day will cost around $80 to $86 per month. At 80 units a day, Lantus will cost over $600 per month. For some people, daily doses can exceed 100 units.
Health insurance can dramatically reduce insulin costs, but out-of-pocket costs depend on the plan, copay, and deductible. Typically, most people without insurance, or with commercial insurance who choose not to use it, and who qualify for a Sanofi copay savings card, can pay $35 for a 30-day supply of Lantus, regardless of the prescribed dose. Both Medicare Part B and Medicare Part D recipients pay no more than $35 for a one-month supply of each insulin product they use. The cost is even lower for those who receive Medicaid.
Insulin glargine, however, is available under other brand names and as a generic. Price comparisons are difficult because not all insulin products are sold in the same amount or concentration. Basaglar is priced similarly to Lantus, based on the price per 100 units, but generic insulin glargine and at least one other brand-name version, Rezvoglar (insulin glargine-aglr), can be purchased at a significant discount compared to Lantus. Other brand-name versions of insulin glargine, the biosimilar Semglee (insulin glargine-ygfn) and the more concentrated Toujeo, are slightly more expensive. Tresiba (insulin degludec), a different type of long-acting insulin, can be substituted for Lantus, but it costs more.
RELATED: How to afford insulin on Medicare
Compare Lantus prices to related drugs |
|||
|---|---|---|---|
| Drug name | Price without insurance | SingleCare price | Savings options |
| Lantus (insulin glargine) | $285 for
1, 10 mL of 100 units/mL vial |
$65 for
1, 10 mL of 100 units/mL vial of brand-name Lantus at Kroger |
See latest prices |
| Lantus SoloStar (insulin glargine) | $80 for 1, 3 mL of 100 units/mL SoloStar pen injector | $21 for 1, 3 mL of 100 units/mL brand-name Lantus SoloStar pen injector at Kroger | See latest prices |
| Insulin glargine SoloStar | $82 for 1, 1.5 mL of 300 units/mL SoloStar pen injector | $43 for 1, 1.5 mL of 300 units/mL generic insulin glargine SoloStar pen injector at Kroger | See latest prices |
| Basaglar KwikPen (insulin glargine) | $94 for
1, 3 mL of 100 units/mL solution pen injector |
$54 for
1, 3 mL of 100 units/mL solution brand-name Basaglar pen injector at Kroger |
See latest prices |
| Rezvoglar KwikPen (insulin glargine-aglr) | $28 for 1, 3 mL of 100 units/mL solution pen injector | $20 for 1, 3 mL of 100 units/mL solution brand-name Rezvoglar pen injector at Kroger | See latest prices |
| Toujeo SoloStar (insulin glargine) | $177 for
1, 1.5 mL of 300 units/mL solution pen injector |
$43 for
1, 1.5 mL of 300 units/mL solution generic Toujeo SoloStar pen injector at Kroger |
See latest prices |
| Semglee (insulin glargine-ygfn) | $112 for
1, 3 mL of 100 units/mL solution pen injector |
$20 for
1, 3 mL of 100 units/mL solution generic Semglee pen injector at Kroger |
See latest prices |
RELATED: Lantus SoloStar alternatives: What can I take instead of Lantus SoloStar?
How to get Lantus without insurance
Insulin is a life-saving drug, but it can be difficult to pay for month after month without insurance. Many pharmaceutical companies offer manufacturer coupons or patient assistance programs, but not everyone will be eligible. There are ways to save money on insulin, starting with a SingleCare savings card.
1. Use a SingleCare savings card
A SingleCare discount card can dramatically reduce the cost of Lantus to as low as $65 for a 10 mL vial or $21 for a 3 mL SoloStar injection pen at Kroger. The discount price, however, will vary by pharmacy, so a Lantus coupon can be selected by choosing the local pharmacy with the best price. Earn additional savings by joining SingleCare’s bonus loyalty program and regularly purchasing prescription drugs with SingleCare discounts. Everyone is eligible for SingleCare savings, unlike government or manufacturer-based patient assistance programs.
Save up to 80% on Lantus with SingleCare
Different pharmacies offer different prices for the same medication. SingleCare helps find the best price for you.
2. Sign up for Medicaid or CHIP
If you qualify for Medicaid or your child qualifies for the Children’s Health Insurance Program, a Lantus monthly prescription will cost only a few dollars per month, no matter how much insulin is needed. Both are government-administered and require income eligibility. Call your state’s health department or visit your state’s Medicaid website to get additional information.
3. Ask the prescriber about patient assistance
The prescribing healthcare provider could help you enroll in the Sanofi Aventis insulin savings card program. Restrictions apply, but eligible insured and uninsured patients will pay a capped low price for a month’s supply of Lantus. Visit the Lantus website for eligibility and enrollment information.
4. Ask the prescriber about biosimilar or generic Lantus
FDA-approved insulin glargine biosimilars can be the lowest-cost alternatives to Lantus. Rezvoglar is one example. For uninsured patients, all of these can be purchased at a significant discount using SingleCare discount coupons. For insured patients, some plans may cover one medication more than another, and this can change from year to year. Before switching insulin products, ask a healthcare professional for medical advice.
5. Compare prices
Every pharmacy sets its own rates, so if the prices at your usual pharmacy seem high, you might be able to find lower prices by checking with others nearby. A quick scan of a few pharmacies could yield significant savings over time.
6. Switch to non-prescription insulin
Ask a healthcare professional for medical advice on substituting an intermediate-acting insulin, such as Humulin N, for the long-acting Lantus. It may not be appropriate for some people, and the switch to a different type of insulin will require more daily doses.
RELATED: 6 Lantus savings tips
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The SingleCare prices in this article are the most accurate at the time of publishing in ZIP code 23666 as of Jun. 3, 2026. Prices vary by pharmacy. Visit our coupon page for updated drug prices at pharmacies near you.
- Insulin, Medicare.gov
- Lantus, Sanofi Aventis (2025)
- Lantus/Lantus SoloStar insulin glargine solution prescribing information, DailyMed (NIH National Library of Medicine) (2025)
- Medically accurate: SingleCare’s Medical Review Board analyzes all of our content to confirm it’s in line with current medical advice.
- Evidence-based: Our content is sourced from reputable U.S.-based healthcare professionals and peer-reviewed research.
- Trustworthy: All of SingleCare’s content goes through a multi-phase review process by our writers, editors, and Medical Board in order to provide clear and credible information.