100u/mL · 1-count · Diabetes · Brand: Lantus · Generic available
| Pharmacy | Cash Price | Per-30-Day Equiv. |
|---|---|---|
| Walmart Cheapest | $24.88 | $746.40 |
| Costco | $72.00 | $2160.00 |
| Kroger | $82.00 | $2460.00 |
| Target | $83.00 | $2490.00 |
| CVS | $89.99 | $2699.70 |
| Rite Aid | $91.00 | $2730.00 |
| Walgreens | $94.00 | $2820.00 |
Insulin Glargine is used to manage blood sugar levels in people with type 2 diabetes. It is sold under the brand name Lantus and is available as the generic Insulin Glargine. A standard supply is 1 100u/mL.
Pharmacy pricing is not regulated in the United States, so retailers set their own cash prices. Large retailers like Walmart and Costco typically offer lower prices on generics because they use prescriptions as a traffic driver. Chain pharmacies like CVS and Walgreens tend to charge significantly more.
Diabetes medications can vary widely in price. Generic versions are available for most first-line treatments. Walmart's $4 program covers several common diabetes generics.
Insulin Glargine belongs to a class of medications called long-acting (basal) insulins. Unlike a rapid-acting insulin taken around meals, it's designed to provide a steady background level of insulin over roughly 24 hours, and is typically used alongside — not instead of — other diabetes management tools your care team has recommended.
Shop around. The cheapest pharmacy (Walmart at $24.88) charges significantly less than the most expensive option ($94.00). A quick call can save you real money.
Ask for the generic. If your doctor prescribed the brand-name Lantus, ask your pharmacist whether the generic Insulin Glargine is available. In most states, pharmacists can substitute a generic unless the prescriber writes 'dispense as written.'
Use a discount card. Services like GoodRx, SingleCare, and WellRx can sometimes negotiate prices lower than retail cash. The estimated GoodRx low for Insulin Glargine is around $68.00.
Insulin pricing has been a major public policy focus in recent years, and several insulin manufacturers now offer patient-assistance or copay-cap programs, including options for uninsured or underinsured patients — federal law also caps out-of-pocket insulin costs for people with Medicare Part D, and a number of states have enacted their own insulin cost caps for commercially insured patients. Because these programs and caps change and vary by state and plan, check the manufacturer's current program directly or ask your pharmacist rather than assuming the cash price shown above is your only option.
Coverage depends on your specific plan and formulary. Most diabetes medications are covered under standard health insurance, typically in Tier 1 or Tier 2. If your copay is higher than the cash price above, it may be cheaper to pay out of pocket — ask your pharmacist to compare. Prior authorization requirements for insulin glargine vary by plan and by whether a biosimilar or interchangeable version is available on your formulary — ask your pharmacist whether a lower-cost biosimilar insulin glargine product could be substituted before assuming the listed brand is your only covered option.
Prices represent estimated retail cash prices for Insulin Glargine 100u/mL (1-count) as of 2026. Actual prices may vary. RxCostCheck does not collect or sell your health data. Learn more →
How much does Insulin Glargine cost without insurance?
Without insurance, Insulin Glargine 100u/mL (1-count) ranges from $24.88 at Walmart to $94.00. With a GoodRx discount card, the price can be as low as $68.00.
Where is the cheapest place to fill Insulin Glargine?
Walmart typically offers the lowest cash price at $24.88 for 1 100u/mL.
Is there a generic for Insulin Glargine?
Yes — the generic Insulin Glargine is available and bioequivalent to Lantus. Ask your pharmacist to dispense the generic to save money.
What if my insurance doesn't cover Insulin Glargine at all?
Ask your prescriber whether a covered therapeutic alternative in the same drug class exists, or ask your pharmacist about a formulary exception or medical-necessity appeal — some plans will cover an otherwise-excluded drug once that documentation is on file. In the meantime, the cash and discount-card pricing shown above is usually the fastest fallback.
Does a 90-day supply of Insulin Glargine cost less than three 30-day fills?
Often, yes — many pharmacies and insurance plans price a 90-day fill at a lower effective per-dose cost than separate 30-day fills, and some mail-order pharmacy benefits are built specifically around 90-day supplies. Ask your pharmacist or insurer whether a 90-day option is available for this medication before assuming the count shown above is your only choice.
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