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Lantus Coupon & Discounts

Save on Lantus at your pharmacy with the free discount below.

Lantus, or insulin glargine, is essential to individuals with diabetes. The out-of-pocket Lantus price can be quite high at around $300 to fill one prescription. Don’t worry about financial struggle over a medication that is essential to your health and survival. Research Lantus assistance program ... Read more

Lantus Discount

Savings with HelpRx discount up to:

75% Off

on Lantus

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*The discount percent is an estimate based off recent cardholder data. Valid as of May 26, 2018

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Lantus Information:

What is Lantus?

Lantus is the brand-name for insulin glargine that is marketed by the Sanofi pharmaceutical company. Insulin glarine is a long-acting insulin analog that helps to control insulin levels throughout the day. It is said that a dose of Lantus never peaks as it slowly releases steady doses of insulin over a 24-hour period. It works in patients with type 1 and type 2 diabetes by helping move sugar from the blood stream to other cells where it can be converted to energy. It also stops the liver from producing more glucose.

Sanofi pharmaceutical company offers Lantus patient assistance programs that provide free drugs to those who don’t have drug coverage from health insurance and meet certain financial requirements. They also have a reimbursement program for Lantus. If you do not qualify for a Lantus patient assistance program, coupons and discount cards from HelpRx can be a good alternative to moderate the cost of this essential drug.

How do I take Lantus?

Lantus comes in a vial or in dosing pens that contain a solution of insulin to be injected under the skin, not into veins or muscle tissue. Always check your vials or injections to make sure that they are not cloudy, discolored, or contain floating particles. In these cases the medication should be disposed of and replaced. If you purchase Lantus vials, you will have to use a syringe to inject your medication. Lantus should be taken at the same time every day at a time that you choose. Follow instructions given to you by your doctor or pharmacist carefully to inject this medication. Inject Lantus into the upper arm, buttocks, abdomen, or thighs. Rotate injection sites within the same area that you choose. Check your blood sugar regularly to make sure the insulin is properly regulating your levels.

Before taking Lantus, tell your doctor if:
  • You have a history of kidney or liver disease
  • You are hypoglycemic or have had episodes of hypoglycemia.
  • You are allergic to insulin or any of the other ingredients in Lantus.
  • You are pregnant or breast-feeding.

What are the possible side effects of taking Lantus?

There are not many known side effects from using insulin glargine or Lantus. The main side effect is possible hypoglycemia. Monitor your blood sugar levels carefully. Severe hypoglycemia can be fatal. Signs of hypoglycemia include shaking, hunger, headache, weakness, sweating, rapid heartbeat, fainting and even seizures. Another possible side effect includes irritation at the site of injection. Tell your doctor if you experience itching, swelling, redness, or thickening skin in these areas. Other side effects include weight gain and edema.

What if I forget to take a dose of Lantus?

It is very important that you NOT miss a dose of Lantus. If you do miss a dose, take the missed dose as soon as your remember. Your healthcare provider should give you a plan of action in case you miss a dose of Lantus. If you did not receive this advice, contact your doctor or pharmacist to get more information immediately. Do not take a double dose of Lantus to make up for a missed one.

How do I store Lantus?

Unopened Lantus vials or cartridges should be stored in the refrigerator at a temperature between 36 and 46 degrees Fahrenheit. Once a cartridge or vial has been opened, it can remain at room temperature for 28 days, and then must be thrown out if not used. Bring insulin vials down to room temperature before injecting the medication. When a vial or cartridge is left at room temperature, keep the medication below 86 degrees Fahrenheit and keep it away from light. Do not allow Lantus to freeze. Frozen medication must be thrown out. Discard any expired medication. Talk to your pharmacist about the proper disposal of Lantus and used needles.

What happens if I overdose on Lantus?

An overdose of Lantus may result in hypoglycemia that can be severe and prolonged. Signs of overdose include those of hypoglycemia: headache, shaking, weakness, rapid heartbeat, sweating, and possibly fainting or seizures. If you think you have overdosed on Lantus, contact your doctor immediately. If the patient is unconscious, having seizures, or not breathing, contact 911 emergency services.


Monitor your blood sugar levels regularly. Know the signs of hypoglycemia and hyperglycemia and how to take action accordingly.

Other Names

Lantus is a brand name for insulin glargine. There are no other brand names for long-acting insulin glargine at this time. Search our site for coupons for Lantus and get up to 93% off the cost of your diabetes medication. Present our free coupons or discount cards in most pharmacies to get a discount on the Lantus retail price and start saving money each time you refill your prescription.

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“The price for my prescription has gone up the past year and paying the out of pocket cost was getting increasingly difficult. Now, through HelpRx I’ve saved hundreds! Thank you HelpRx” - Janet Larsen - Austin, TX

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About Our Savings: is a discount pharmacy service, partnered with a leading pharmacy benefit manager. We negotiate lower prices on prescription medications, that we pass on to our members for free. There is no cost to use our cards and coupon, and anyone can take advantage of our discounts, regardless of healthcare coverage.

Our savings assurance of “up to 75% off” comes from historical data from actual claims. This data includes savings for both brand name and generic medications.