
Allegra 120 Tablet
Sanofi India Ltd - Tablet - 10 Tablet
Prescription required
Insulin glargine 300 units/mL (U-300) solution for injection
Toujeo 300U/ML Cartridge Injection is used for treatment of diabetes mellitus to improve glycaemic control in adults; used as a long-acting (basal) insulin in type 1 diabetes (with mealtime insulin) and type 2 diabetes (alone or with other antidiabetic medicines) as prescribed.
Medically reviewed by Dr. Balaji Krishnan, MBBS · Updated August 2026
Toujeo 300U/ML Cartridge Injection contains Insulin glargine 300 units/mL (U-300) solution for injection. It belongs to the Long-acting insulin analogue (basal insulin) class of medicines.
Treatment of diabetes mellitus to improve glycaemic control in adults; used as a long-acting (basal) insulin in type 1 diabetes (with mealtime insulin) and type 2 diabetes (alone or with other antidiabetic medicines) as prescribed.
Insulin glargine is a long-acting insulin analogue. After subcutaneous injection, it forms a depot in the tissue and is slowly released, providing a steady basal insulin level that lowers blood glucose by increasing peripheral glucose uptake and reducing hepatic glucose production.
For subcutaneous use only. Inject once daily at the same time each day (as advised by the doctor) into abdomen, thigh or upper arm; rotate injection sites. Do not inject into a vein or muscle and do not mix/dilute with other insulins. Follow prescribed dose and titration based on blood glucose; use the compatible insulin pen/device for Toujeo cartridges as instructed.
Take it exactly as your doctor prescribed. Do not change the dose or stop early on your own.
Take the missed dose of Toujeo 300U/ML Cartridge as soon as you remember. If it is almost time for the next dose, skip the missed one and carry on with the usual schedule. Do not take two doses together to make up for a missed dose.
Taking more Toujeo 300U/ML Cartridge than prescribed can be harmful. If you suspect an overdose, contact a doctor or go to the nearest emergency department at once, and carry the pack or strip with you. In India the emergency number is 112.
Most side effects of Toujeo 300U/ML Cartridge are mild and settle as the body adjusts. Reported side effects include:
Stop the medicine and seek help immediately for a rash, swelling of the face or lips, wheezing or difficulty breathing. Tell your doctor about any side effect that persists or worries you.
| Pregnancy | Consult doctor (insulin is commonly used in pregnancy; dose adjustments and close monitoring required) |
|---|---|
| Alcohol | Use with caution (may increase risk of hypoglycaemia) |
| Habit forming | No |
Risk of hypoglycaemia—monitor blood glucose regularly and carry fast-acting sugar. Use caution in renal/hepatic impairment, elderly, irregular meals, increased exercise, or alcohol use. Do not use during episodes of hypoglycaemia. Not for treatment of diabetic ketoacidosis (use short-acting insulin). Switching from other insulins should be done under medical supervision (dose differences between U-100 and U-300). Seek urgent care for severe allergic reaction. Use proper injection technique and site rotation to reduce lipodystrophy.
Other antidiabetic drugs (additive hypoglycaemia),ACE inhibitors/ARBs (may increase hypoglycaemia risk),beta-blockers (may mask hypoglycaemia symptoms),corticosteroids/thyroid hormones/sympathomimetics (may increase blood glucose),thiazide diuretics (may increase blood glucose),alcohol (can increase risk of hypoglycaemia),pioglitazone/other TZDs (risk of fluid retention/heart failure when used with insulin)
Store unopened cartridges refrigerated at 2–8°C; do not freeze and keep away from freezer compartment. Protect from light; keep in outer carton. After first use, keep at room temperature (do not refrigerate) below 30°C, away from heat/light, and use within the period stated on the label/device instructions; do not use if solution is cloudy or contains particles.

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The information on Toujeo 300U/ML Cartridge Injection is compiled from the manufacturer's prescribing information and the sources below, and is reviewed by a registered medical practitioner. It does not replace advice from your own doctor.