Toujeo Solostar
Toujeo SoloStar 1.5ML of 300UNIT/ML
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%.
Side Effects
- 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
Warnings
- 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.
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.
Toujeo Solostar Coupons & Prices
Toujeo SoloStar 1.5ML of 300UNIT/ML
Weight-loss medication, prescribed online
Licensed U.S. providers · No insurance needed · Shipped to your door
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.
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.