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Toujeo Solostar Solostar Pen — prescription drug image

Toujeo Solostar

Toujeo SoloStar 1.5ML of 300UNIT/ML

Prescriptions & Refills
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What is Toujeo Solostar?

Toujeo SoloStar is a long-acting insulin pen used to help manage blood sugar in adults and children age 6 and older with diabetes. It provides steady insulin coverage for up to 24 hours and may help support more consistent glucose control. Through Rx.com, you can talk to a doctor online in minutes if you need a prescription or refill for Toujeo SoloStar. If you already have a prescription and are looking for a discount, the Rx.com Toujeo SoloStar coupon card will save you up to 80%.

Prescription savings · · · ·

What is Toujeo Solostar ?

Toujeo SoloStar is a long-acting insulin pen used to help manage blood sugar in adults and children age 6 and older with diabetes. It provides steady insulin coverage for up to 24 hours and may help support more consistent glucose control. Through Rx.com, you can talk to a doctor online in minutes if you need a prescription or refill for Toujeo SoloStar. If you already have a prescription and are looking for a discount, the Rx.com Toujeo SoloStar coupon card will save you up to 80%.

  • Dry mouth, increased thirst, muscle cramps, nausea, vomiting, uneven heartbeat
  • Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
  • Rapid weight gain, swelling in your hands, ankles, or feet, trouble breathing, tiredness
  • Fever, chills, cough, stuffy or runny nose, sore throat, body aches
  • Shaking, trembling, sweating, fast or pounding heartbeat, lightheadedness, hunger, confusion
  • Your doctor will do lab tests at regular visits to check on the effects of this medicine. Keep all appointments.
  • Tell your doctor if you are pregnant or breastfeeding, or if you have kidney disease, liver disease, heart disease (including heart failure), or ketoacidosis (high ketones and acid in the blood).
  • This medicine may cause the following problems:Low blood sugar (more likely if you also take other medicines, including beta-blockers)Fluid retention or heart failure (when used with thiazolidinedione [TZD] medicine)
  • This medicine can cause low blood sugar. Do not drive or do anything else that could be dangerous until you know how this medicine affects you.
  • Keep all medicine out of the reach of children. Never share your medicine with anyone.
  • Keep all medicine out of the reach of children. Never share your medicine with anyone.
What is Toujeo SoloStar used for?
Toujeo SoloStar is a long-acting (basal) insulin used to improve blood sugar control in adults and children 6 years and older with type 1 or type 2 diabetes. It provides steady, roughly 24-hour blood-sugar lowering. It is not used to treat diabetic ketoacidosis.
What is the difference between Toujeo and Lantus?
Both contain the same active insulin, insulin glargine. Lantus is the standard U-100 (100 units/mL) concentration, while Toujeo is a more concentrated U-300 (300 units/mL) version. Because of this difference, the two are not interchangeable unit-for-unit, and any switch should be made only under your provider's supervision.
How long does Toujeo take to start working?
Toujeo is a long-acting background insulin designed to release slowly and provide steady blood-sugar lowering over about 24 hours, rather than acting quickly like a mealtime insulin. It may take several days of consistent daily dosing to reach its full, stable effect. Ask your provider what to expect for your situation.
Is there a generic version of Toujeo?
No. There is currently no generic version of Toujeo (insulin glargine U-300). Because there is no generic, comparing pharmacy cash prices with a coupon, checking your insurance, and looking into the manufacturer savings program or patient assistance are the main ways to lower your cost.
How much does Toujeo SoloStar cost with a savings card?
The price varies by pharmacy, your insurance, and which savings option you use, so we don't list a fixed dollar amount. The manufacturer's savings card is generally for people with commercial insurance and has terms that can change. If you're uninsured, on Medicare, or your card is declined, enter your ZIP above to see today's Rx.com cash-coupon price near you.
How much does Toujeo SoloStar cost without insurance?
The price of Toujeo SoloStar without insurance varies by pharmacy, dosage, and quantity. Rx.com compares cash prices at more than 60,000 US pharmacies so you can find the lowest price near you. Many people save up to 36% off retail prices with a free Rx.com coupon.
What are the common side effects of Toujeo SoloStar?
Common side effects of Toujeo SoloStar may include: Dry mouth, increased thirst, muscle cramps, nausea, vomiting, uneven heartbeat, Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing, Rapid weight gain, swelling in your hands, ankles, or feet, trouble breathing, tiredness, Fever, chills, cough, stuffy or runny nose, sore throat, body aches, Shaking, trembling, sweating, fast or pounding heartbeat, lightheadedness, hunger, confusion. This is not a complete list — consult your pharmacist or doctor for full side effect information.
Is there a generic version of Toujeo SoloStar?
Generic versions may be available for Toujeo SoloStar. Generics contain the same active ingredients as brand-name drugs and are typically 80–90% cheaper. Search Toujeo SoloStar on Rx.com to compare generic and brand prices at pharmacies near you.
What is the cheapest pharmacy for Toujeo SoloStar?
The cheapest pharmacy for Toujeo SoloStar depends on your location and dosage. Rx.com compares prices at CVS, Walgreens, Walmart, Kroger, Costco, and thousands of independent pharmacies. Enter your ZIP code on Rx.com to find the lowest price for Toujeo SoloStar near you.

Toujeo Solostar Coupons & Prices

Toujeo SoloStar 1.5ML of 300UNIT/ML

Prescriptions & Refills
Licensed US providers · Online visit in minutes
Toujeo Solostar Solostar Pen — prescription drug image
Prescription
Toujeo Solostar 1.5ml of 300units/ml (1)
your area ·
Prescription weight loss

Weight-loss medication, prescribed online

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$146/mo vs. brand-name GLP-1 medications $1,300+/mo Save up to 88%
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Compounded GLP-1 medications are not FDA-approved and are prepared by state-licensed compounding pharmacies. They are not affiliated with, endorsed by, or equivalent to any brand-name medication or manufacturer. Prescription required; eligibility is determined by a licensed provider. Prices are estimates and may vary.

Looking for a Toujeo SoloStar coupon? Rx.com offers a free cash-price coupon you can use at the pharmacy counter for Toujeo SoloStar (insulin glargine U-300), the concentrated long-acting basal insulin used to help control blood sugar in adults and children 6 years and older with type 1 or type 2 diabetes. There is no generic version yet, and prices vary widely by pharmacy, so enter your ZIP above to see today's price near you and compare it against your insurance or a manufacturer savings card.

What is Toujeo SoloStar and how does it work?

Toujeo SoloStar is a prefilled injection pen containing insulin glargine at a concentration of 300 units/mL (U-300). It is a long-acting, or basal, human insulin analog that provides steady, roughly 24-hour blood-sugar lowering to help improve glycemic control in adults and children 6 years and older with type 1 or type 2 diabetes. It comes in the standard Toujeo SoloStar pen and the higher-capacity Toujeo Max SoloStar pen.

Because Toujeo is three times more concentrated than standard U-100 insulins, the SoloStar pen dials the actual number of units you need, so you should never try to convert the dose yourself. Toujeo is a background insulin and is not used to treat diabetic ketoacidosis. Your provider will determine the right dose and schedule for you.

Toujeo SoloStar cost: manufacturer savings card vs. Rx.com cash coupon

The manufacturer, Sanofi, runs an official Toujeo savings program (described on the toujeo.com site) that can lower the out-of-pocket cost for eligible patients. Like most drug-maker copay cards, it is generally limited to people with commercial (private) insurance and is typically not available if you have Medicare, Medicaid, or other government coverage. Eligibility and terms vary and can change, so check the manufacturer's official program details.

If you are uninsured, covered by Medicare or Medicaid, or your savings card is declined, a Rx.com cash coupon is a straightforward alternative. It sets a discounted cash price you show at the pharmacy instead of billing insurance. Because there is no generic insulin glargine U-300, the pharmacy you choose and the coupon price are the main levers for savings. Sanofi also offers a patient assistance program for those who qualify based on income. Enter your ZIP above to see today's Rx.com price for Toujeo SoloStar in your area.

Toujeo alternatives and how it compares

Toujeo is one of several long-acting basal insulins. Your provider may discuss alternatives depending on your needs, coverage, and cost:

  • Lantus SoloStar — also insulin glargine, but at the standard U-100 concentration; Toujeo is the more concentrated U-300 version of the same active insulin.
  • Basaglar and Semglee — other insulin glargine U-100 products.
  • Levemir (insulin detemir) and Tresiba (insulin degludec) — different long-acting basal insulins.

These insulins differ in concentration, how long they last, and cost, and they are not automatically interchangeable. Never switch insulin products, strengths, or doses without your provider's guidance.

Safety information

Toujeo has no boxed warning, but insulin carries important risks. The most common serious risk is hypoglycemia (low blood sugar), which can be severe or life-threatening. Low potassium (hypokalemia) can also occur and may cause serious heart rhythm problems, and rare but serious allergic reactions are possible. Never transfer between insulin products or change your insulin type, strength, or dose without medical supervision. Do not dilute or mix Toujeo with other insulins, and do not use it in an insulin pump or intravenously. Certain insulin-sensitizing medicines (such as TZDs) can cause fluid retention or heart failure when used with insulin.

This is general information, not medical advice. Talk with your doctor or pharmacist about your full medical history and any other medicines you take before starting or changing Toujeo.

Sources & accuracy

This Toujeo Solostar information was written and reviewed against authoritative U.S. medical sources — MedlinePlus (U.S. National Library of Medicine), DailyMed, and FDA prescribing information — and checked for accuracy. It is provided for education and is not a substitute for professional medical advice.

Verify the official label: Toujeo Solostar on DailyMed (FDA)

Reviewed against FDA labeling · Last reviewed July 2026

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Medical disclaimer: This information is provided for general educational purposes only and is not medical advice. It is not a substitute for professional diagnosis or treatment. Always consult a licensed physician, pharmacist, or other qualified healthcare provider before starting, stopping, or changing any medication or treatment. Never disregard professional medical advice or delay seeking it because of something you read here. If you think you may have a medical emergency, call your doctor or 911 immediately.


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