Prescription Drug Coverage

Lantus Solostar (Insulin Glargine) Medicare Coverage

You may be able to find Medicare plan options in your area that cover Lantus Solostar (insulin glargine). Learn more about Lantus Solostar and find Medicare Advantage plans in your area that cover other prescription drugs.
Lantus Solostar
Chemical name: Insulin Glargine

Brand name: Lantus Solostar

Typical dosage: 3ml of 100 units/ml

Typical type: Injector pen1

Lantus Solostar is a medication used to treat type 1 and type 2 diabetes. Lantus Solostar is a brand name only and comes as an injection pen.

Lantus Solostar is used to improve control of blood sugar in people with type 1 and type 2 diabetes. Lantus Solostar contains the active ingredient insulin glargine.

This medication is given as injection under the skin. Common side effects with Lantus Solostar include irritation where the shot is given, diarrhea, headache, weight gain, nose or throat irritation and joint pain.

How much does Lantus Solostar cost with Medicare?

Lantus Solostar coverage and costs may vary based on the specific plan you have, as well as what coverage stage you're in.

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Contact your plan carrier or consult your plan formulary for more cost information.

Does Medicare cover Lantus Solostar?

According to GoodRx, 87% of Medicare Advantage plans and Medicare Part D plans covered Lantus Solostar in 2023.1

  • Medicare Advantage plans or Part D plans that cover Lantus Solostar include copay amounts that can range widely from one plan to another. Plan members may also be responsible for meeting a deductible before the plan’s drug coverage kicks in.

  • Medicare Advantage plans that offer prescription drug coverage are called Medicare Advantage Prescription Drug Plans (MA-PD). 89% of 2023 Medicare Advantage plans included prescription drug coverage.2

  • Medicare prescription drugs plans each have their own formulary, or drug list, that details what prescription drugs are covered by the plan and how they are covered.

Drug coverage may vary based on plan availability. You may be able to find Medicare Advantage plan options in your area that cover Lantus Solostar. We represent carriers such as Humana, UnitedHealthcare®, Anthem Blue Cross and Blue Shield, Aetna, Cigna Healthcare, Wellcare, or Kaiser Permanente.

You can also compare Part D prescription drug plans available where you live and enroll in a Medicare prescription drug plan online when you visit

Additional information

Lantus Solostar is given as an injection. This should be given as a shot into the fatty part of the skin on the top of the thigh, belly area or upper arm. Move the site where you give the shot each time.

Do not give the shot into any skin that is cut, bruised, red, scarred or irritated. Wash your hands before and after use.

Throw away needles after each dose. Do not reuse needles. Sharps containers are usually available at most pharmacies. You can also use a hard plastic container with a lid, such as a laundry soap container.

Lantus Solostar is an insulin medication that can cause your blood sugars to become too low. You’ll know if your blood sugar levels are too low if it reaches less than 70mg/dL or if you experience symptoms of shakiness, hunger, sweating, fatigue, rapid heart rate and confusion.

If your blood sugar is low, eat or drink 15g of carbohydrates and recheck your blood sugar after 15 minutes. If you experience low blood sugars often, tell your doctor.



This article is for informational purposes only. It is not healthcare advice, treatment, or diagnosis. It is not an endorsement of or recommendation for this medication. Speak to your doctor or healthcare provider about your specific healthcare needs, including your prescription medications. Only take medication as directed by your doctor.

Coverage and costs of prescription medications will vary by Medicare plan. Not all plans are available in all areas.


Written by Hayden Gharibyar, Pharm.D.

1 GoodRx. Lantus. Retrieved October 2023, from

2 Freed M, et al. (Nov 10, 2022). Medicare Advantage 2023 Spotlight: First Look. Kaiser Family Foundation.