Insulin Degludec (insulin degludec)
Insulin Degludec is a ultra-long-acting (basal) recombinant human insulin analog, available as 100 units/ml (u-100) and 200 units/ml (u-200) from Novo Nordisk, marketed originally as Tresiba. This monograph covers approved indications, mechanism, dosing, side effects, the generic manufacturer landscape and verified list prices.
Overview
Insulin degludec is an ultra-long-acting basal insulin, a recombinant human insulin analogue available in 100 units/mL (U-100) and 200 units/mL (U-200) strengths. Novo Nordisk markets it as Tresiba (诺和达) and also sells an unbranded 'insulin degludec' biologic. It improves glycaemic control in adults and children from 1 year of age under current labelling - the manufacturer describes it as the only long-acting insulin approved for both type 1 and type 2 diabetes in children as young as 1 year old. It is not recommended for diabetic ketoacidosis, and is used with or without bolus insulin.
The molecule has threonine deleted at position B30 and a 16-carbon fatty diacid side chain attached through a glutamic acid spacer. In the subcutaneous depot the side chains self-associate into multi-hexamers that dissociate slowly and continuously into monomers and dimers, giving a smooth, stable, peakless action profile lasting beyond 42 hours. In plasma it binds serum albumin with protein binding above 99%, which prolongs its action further; the steady-state half-life averages about 25 hours regardless of dose, and all metabolites formed are inactive.
Because the profile is flat and long, the once-daily injection can be given at almost any time of day provided at least 8 hours separate consecutive injections; a missed dose is taken during waking hours once noticed. Doses are titrated against blood glucose results, with increases recommended every 3 to 4 days, and no conversion is needed between the U-100 and U-200 FlexTouch pens because both dose windows show units directly.
Hypoglycaemia is the most common adverse reaction and may be life-threatening; nasopharyngitis (23.9% in type 1 and 12.9% in type 2 diabetes), headache, upper respiratory tract infection, injection site reactions, lipodystrophy, oedema, weight gain and hypokalaemia are also reported. No biosimilar or generic of insulin degludec exists - patents still keep competitors off the market, so the only alternative is Novo Nordisk's own unbranded product. Storage needs a cold chain: unused pens and vials stay at 2-8 degrees C and must never be frozen, while an in-use pen is kept below 30 degrees C and used within 56 days.
Insulin Degludec price list — Bangladesh
Every DGDA-registered brand of this molecule with its list unit price, including the originator for comparison. Bangladesh is the most transparent reference market for on-patent generics.
| Brand | Manufacturer | Strength | Unit price | ≈ USD | Pack |
|---|---|---|---|---|---|
| Tresiba Originator | Novo Nordisk Pharma (Pvt.) Ltd | 100 IU/ml SC Injection | — | — | 5's pack: ৳ 13,750.00 |
Source: MedEx Bangladesh drug registry (list prices of DGDA-registered brands). Unit prices move with pack size, pharmacy and exchange rate — reference only. Original registry page
How it works
Insulin degludec is a very long-acting background insulin. After injection it forms long chains in the tissue under the skin that break down slowly, releasing insulin steadily for more than 24 hours. This gives a flat, stable basal insulin level and allows the once-daily injection to be given at almost any time of day, while keeping blood sugar controlled between meals and overnight.
Insulin degludec is a human insulin analog with the deletion of threonine at position B30 and the addition of a 16-carbon fatty diacid side chain attached through a glutamic acid spacer. In the subcutaneous depot, the side chains self-associate into multi-hexamers that slowly and continuously dissociate into monomers and dimers, producing a smooth, stable, peakless action profile lasting beyond 42 hours. In plasma, insulin degludec binds serum albumin with a protein binding of more than 99%, which further prolongs its action; there is no clinically relevant interaction with other protein-bound drugs. Like human insulin it binds the insulin receptor, stimulating peripheral glucose uptake (mainly in skeletal muscle and adipose tissue) and inhibiting hepatic glucose production. Degradation is similar to that of human insulin and all metabolites formed are inactive.
Approved indications
- To improve glycemic control in adults with diabetes mellitus (US label of 2015)
- Current Tresiba labeling covers adults and children 1 year of age and older with diabetes - the manufacturer states it is the only long-acting insulin approved for both type 1 and type 2 diabetes in children as young as 1 year of age
- Not recommended for the treatment of diabetic ketoacidosis
- Used alone or in combination with oral antidiabetic medicines or bolus insulin
Dosage & administration
Individualize and titrate the dose based on metabolic needs, blood glucose monitoring results and the glycemic control goal. Insulin-naive type 1 diabetes: start with approximately one-third to one-half of the total daily insulin dose, with the remainder divided between meals as a short-acting insulin; a general rule is 0.2 to 0.4 units/kg/day for the initial total daily dose. Insulin-naive type 2 diabetes: 10 units once daily. Patients already on insulin: start at the same unit dose as the total daily long- or intermediate-acting insulin being replaced. Inject subcutaneously once daily at any time of day; the recommended interval between dose increases is 3 to 4 days, and at least 8 hours must elapse between consecutive injections. Do not administer intravenously, intramuscularly or in an insulin pump; do not dilute or mix; do not transfer Tresiba from the pen into a syringe (the markings will not measure the dose correctly). No dose conversion is needed between the U-100 and U-200 FlexTouch pens - both dose windows show units directly.
Dose adjustment
Dose adjustments may be needed with changes in physical activity, changes in meal patterns (macronutrient content or timing), changes in renal or hepatic function, or during acute illness, to minimize the risk of hypoglycemia or hyperglycemia. Patients with renal or hepatic impairment may be at higher risk of hypoglycemia. For a missed dose, inject the daily dose during waking hours upon discovering the missed dose, ensuring at least 8 hours between consecutive injections. Changes in insulin, manufacturer, type or method of administration should be made cautiously and only under medical supervision with increased blood glucose monitoring.
Side effects
Hypoglycemia - the most commonly observed adverse reaction with insulin, and may be life-threatening · Injection site reactions · Lipodystrophy at injection sites · Pruritus and rash · Edema · Weight gain · Nasopharyngitis (23.9% in type 1 diabetes; 12.9% in type 2 diabetes) · Headache (11.8% type 1; 8.8% type 2) · Upper respiratory tract infection (11.9% type 1; 8.4% type 2) · Hypokalemia (potassium shifts into cells)
- Allergic reactions, including severe, life-threatening generalized allergy and anaphylaxis
Monitoring
- Blood glucose self-monitoring and HbA1c; increase monitoring frequency when changing the insulin regimen
- Signs and symptoms of hypoglycemia, especially in patients with renal or hepatic impairment, in patients with hypoglycemia unawareness, and in those on beta-blockers or other anti-adrenergic drugs (which can mask warning signs)
- Potassium levels in patients at risk of hypokalemia
- Injection sites for lipodystrophy
- Signs and symptoms of heart failure in patients taking insulin with a thiazolidinedione (PPAR-gamma agonist)
- Timing of doses - at least 8 hours must elapse between consecutive injections
Generic and biosimilar landscape
No biosimilar or generic of insulin degludec was found approved in the sources reviewed - the patents on the degludec molecule have kept copies off the market, so unlike insulin glargine or insulin aspart there is no interchangeable biosimilar to substitute. What exists instead is Novo Nordisk's own unbranded 'insulin degludec' biologic (FDA-approved July 2022 and launched at about 65% below the Tresiba list price): this is the same product made by the same manufacturer without the brand name on the label, not a copy made by a competitor. For a knowledge site this distinction matters: patients asking whether a cheaper 'generic Tresiba' exists are in fact being offered either an unbranded version of the same product or a switch to a different basal insulin (for example a glargine biosimilar), which requires clinical review rather than pharmacy substitution.
Who makes it
| Manufacturer | Country | Brand | Strength | Notes |
|---|---|---|---|---|
| Novo Nordisk | Denmark | Insulin degludec (unbranded biologic); originator brand Tresiba | U-100 10 mL vial; U-100 3 mL FlexTouch (5-pack); U-200 3 mL FlexTouch (3-pack) | The FDA approved an unbranded insulin degludec in July 2022, launched at approximately 65% off the Tresiba list price (USD 118.63 for the U-100 10 mL vial). This is the same produc |
Availability in Southeast Asia
| Country | Status | Notes |
|---|---|---|
| Southeast Asia (regional) | not verified | No NPRA (Malaysia), BPOM (Indonesia), Thai FDA or Philippine FDA registration record for insulin degludec was confirmed in the sources reviewed. Novo Nordisk markets Tresiba in 40+ countries and it is listed in Bangladesh at BDT 2,750 per 3 mL FlexTouch, so availability in major Southeast Asian markets is likely but unverified here; the absence of any biosimilar also means every degludec product on the market is Novo Nordisk's. |
| Bangladesh (South Asia benchmark) | available | Tresiba 100 IU/mL listed on MedEx at BDT 2,750 per 3 mL FlexTouch (5's pack BDT 13,750). Not Southeast Asia; included as a regional price benchmark. |
Price by country
Reference prices by market
| Market | Product | Listed price | Source |
|---|---|---|---|
| Bangladesh | Tresiba 100 IU/mL 3 mL FlexTouch (Novo Nordisk Pharma (Pvt.) Ltd) | BDT 2,750.00 (5's pack BDT 13,750.00) | medex.com.bd |
| Bangladesh | Tresiba FlexTouch 100 IU/mL (retail listing, Arogga) | BDT 2,745.00 | arogga.com |
| United States | Tresiba U-200 FlexTouch (3 x 3 mL) - wholesale acquisition cost | USD 169.71 | novopricing.com |
| United States | Tresiba U-100 FlexTouch (5 x 3 mL) - wholesale acquisition cost | USD 141.43 | novopricing.com |
| United States | Tresiba U-100 10 mL vial - wholesale acquisition cost | USD 94.29 | novopricing.com |
| India | Tresiba insulin degludec 100 IU/mL 3 mL (third-party retailer listing) | INR 5,900 per piece (reseller listing, not an official price) | indiamart.com |
Frequently asked questions
What is insulin degludec and how is it different from insulin glargine?
Insulin Degludec is approved for: To improve glycemic control in adults with diabetes mellitus (US label of 2015); Current Tresiba labeling covers adults and children 1 year of age and older with diabetes - the manufacturer states it is the only long-acting insulin approved for both type 1 and type 2 diabetes in children as young as 1 year of age; Not recommended for the treatment of diabetic ketoacidosis; Used alone or in combination with oral antidiabetic medicines or bolus insulin. It is a insulin degludec (Ultra-long-acting), originally marketed as Tresiba (诺和达); an unbranded 'insulin degludec' biologic is also marketed by Novo Nordisk.
Is there a generic or biosimilar version of Tresiba available?
No biosimilar or generic of insulin degludec was found approved in the sources reviewed - the patents on the degludec molecule have kept copies off the market, so unlike insulin glargine or insulin aspart there is no interchangeable biosimilar to substitute. What exists instead is Novo Nordisk's own unbranded 'insulin degludec' biologic (FDA-approved July 2022 and launched at about 65% below the Tresiba list price): this is the same product made by the same manufacturer without the brand name on the label, not a copy made by a competitor. For a knowledge site this distinction matters: patients asking whether a cheaper 'generic Tresiba' exists are in fact being offered either an unbranded version of the same product or a switch to a different basal insulin (for example a glargine biosimilar), which requires clinical review rather than pharmacy substitution. Manufacturers supplying insulin degludec generic versions include Novo Nordisk. Brands registered in Bangladesh include Tresiba.
How long does insulin degludec last in the body?
Insulin Degludec (Ultra-long-acting (basal) recombinant human insulin analog, available as 100 units/mL (U-100) and 200 units/mL (U-200), originally Tresiba (诺和达); an unbranded 'insulin degludec' biologic is also marketed by Novo Nordisk) Insulin degludec is a very long-acting background insulin. After injection it forms long chains in the tissue under the skin that break down slowly, releasing insulin steadily for more than 24 hours. This gives a flat, stable basal insulin level and allows the once-daily injection to be given at almost any time of day, while keeping blood sugar controlled between meals and overnight. Individualize and titrate the dose based on metabolic needs, blood glucose monitoring results and the glycemic control goal. Insulin-naive type 1 diabetes: start with approximately one-third to one-half of the total daily insulin dose, with the remainder divided between meals as a short-acting insulin; a general rule is 0.2 to 0.4 units/kg/day for the initial total daily dose. Insulin-naive type 2
Can Tresiba be injected at different times each day?
Insulin Degludec (Ultra-long-acting (basal) recombinant human insulin analog, available as 100 units/mL (U-100) and 200 units/mL (U-200), originally Tresiba (诺和达); an unbranded 'insulin degludec' biologic is also marketed by Novo Nordisk) Insulin degludec is a very long-acting background insulin. After injection it forms long chains in the tissue under the skin that break down slowly, releasing insulin steadily for more than 24 hours. This gives a flat, stable basal insulin level and allows the once-daily injection to be given at almost any time of day, while keeping blood sugar controlled between meals and overnight. Individualize and titrate the dose based on metabolic needs, blood glucose monitoring results and the glycemic control goal. Insulin-naive type 1 diabetes: start with approximately one-third to one-half of the total daily insulin dose, with the remainder divided between meals as a short-acting insulin; a general rule is 0.2 to 0.4 units/kg/day for the initial total daily dose. Insulin-naive type 2
How should Tresiba be stored before and after opening?
Storage: Before use: store unused Tresiba FlexTouch pens and vials in a refrigerator at 2 degrees C to 8 degrees C (36-46 degrees F); do not store in the freezer or directly adjacent to the refrigerator cooling element; do not freeze and do not use if it has been frozen. Unopened pens may be used until the expiration date printed on the label if kept refrigerated. An in-use (opened) pen should NOT be refrigerated but kept at room temperature below 30 degrees C (86 degrees F), away from direct heat and light, and it may be used for up to 56 days (8 weeks) after being opened. Always remove the needle and store the pen without a needle attached. The FDA approval letter for Tresiba granted a 30-month shelf life at 5 degrees C plus or minus 3 degrees C and a 56-day in-use period at up to 30 degrees C. Keep the product in its original packaging and check the expiry date printed on the pack.
What happens if Tresiba freezes?
Insulin Degludec (Ultra-long-acting (basal) recombinant human insulin analog, available as 100 units/mL (U-100) and 200 units/mL (U-200), originally Tresiba (诺和达); an unbranded 'insulin degludec' biologic is also marketed by Novo Nordisk) Insulin degludec is a very long-acting background insulin. After injection it forms long chains in the tissue under the skin that break down slowly, releasing insulin steadily for more than 24 hours. This gives a flat, stable basal insulin level and allows the once-daily injection to be given at almost any time of day, while keeping blood sugar controlled between meals and overnight. Individualize and titrate the dose based on metabolic needs, blood glucose monitoring results and the glycemic control goal. Insulin-naive type 1 diabetes: start with approximately one-third to one-half of the total daily insulin dose, with the remainder divided between meals as a short-acting insulin; a general rule is 0.2 to 0.4 units/kg/day for the initial total daily dose. Insulin-naive type 2
Do I need to convert the dose between Tresiba U-100 and U-200 pens?
Standard dosing for insulin degludec: Individualize and titrate the dose based on metabolic needs, blood glucose monitoring results and the glycemic control goal. Insulin-naive type 1 diabetes: start with approximately one-third to one-half of the total daily insulin dose, with the remainder divided between meals as a short-acting insulin; a general rule is 0.2 to 0.4 units/kg/day for the initial total daily dose. Insulin-naive type 2 diabetes: 10 units once daily. Patients already on insulin: start at the same unit dose as the total daily long- or intermediate-acting insulin being replaced. Inject subcutaneously once daily at any time of day; the recommended interval between dose increases is 3 to 4 days, and at least 8 hours must elapse between consecutive injections. Do not administer intravenously, intramuscularly or in an insulin pump; do not dilute or mix; do not transfer Tresiba from the pen into a syringe (the markings will not measure the dose correctly). No dose conversion is needed between the U-100 and U-200 FlexTouch pens - both dose windows show units directly. Dose adjustments: Dose adjustments may be needed with changes in physical activity, changes in meal patterns (macronutrient content or timing), changes in renal or hepatic function, or during acute illness, to minimize the risk of hypoglycemia or hyperglycemia. Patients with renal or hepatic impairment may
Can Tresiba be mixed with rapid-acting insulin or given in an insulin pump?
Insulin Degludec (Ultra-long-acting (basal) recombinant human insulin analog, available as 100 units/mL (U-100) and 200 units/mL (U-200), originally Tresiba (诺和达); an unbranded 'insulin degludec' biologic is also marketed by Novo Nordisk) Insulin degludec is a very long-acting background insulin. After injection it forms long chains in the tissue under the skin that break down slowly, releasing insulin steadily for more than 24 hours. This gives a flat, stable basal insulin level and allows the once-daily injection to be given at almost any time of day, while keeping blood sugar controlled between meals and overnight. Individualize and titrate the dose based on metabolic needs, blood glucose monitoring results and the glycemic control goal. Insulin-naive type 1 diabetes: start with approximately one-third to one-half of the total daily insulin dose, with the remainder divided between meals as a short-acting insulin; a general rule is 0.2 to 0.4 units/kg/day for the initial total daily dose. Insulin-naive type 2
What are the most common side effects of insulin degludec?
The most frequently reported side effects of insulin degludec are hypoglycemia - the most commonly observed adverse reaction with insulin, and may be life-threatening, allergic reactions, including severe, life-threatening generalized allergy and anaphylaxis, injection site reactions, lipodystrophy at injection sites, pruritus and rash, edema, weight gain. Routine monitoring: Blood glucose self-monitoring and HbA1c; increase monitoring frequency when changing the insulin regimen; Signs and symptoms of hypoglycemia, especially in patients with renal or hepatic impairment, in patients with hypoglycemia unawareness, and in those on beta-blockers or other anti-adrenergic drugs (which can mask warning signs); Potassium levels in patients at risk of hypokalemia. Report any new or worsening symptom to your treating physician — most adverse effects are managed by dose reduction rather than stopping treatment.
Why is a low blood sugar risk higher with insulin degludec in kidney or liver disease?
Recommended monitoring for insulin degludec: Blood glucose self-monitoring and HbA1c; increase monitoring frequency when changing the insulin regimen; Signs and symptoms of hypoglycemia, especially in patients with renal or hepatic impairment, in patients with hypoglycemia unawareness, and in those on beta-blockers or other anti-adrenergic drugs (which can mask warning signs); Potassium levels in patients at risk of hypokalemia; Injection sites for lipodystrophy; Signs and symptoms of heart failure in patients taking insulin with a thiazolidinedione (PPAR-gamma agonist); Timing of doses - at least 8 hours must elapse between consecutive injections
Sources
- https://www.accessdata.fda.gov/drugsatfda_docs/label/2015/203314lbl.pdf
- https://www.accessdata.fda.gov/drugsatfda_docs/label/2018/203314s009lbl.pdf
- https://www.accessdata.fda.gov/drugsatfda_docs/nda/2015/203314Orig1s000Approv.pdf
- https://www.tresiba.com/support-and-resources/faqs.html
- https://www.prnewswire.com/news-releases/novo-nordisk-receives-fda-approval-for-tresiba-insulin-degludec-injection-for-adults-with-type-1-and-type-2-diabetes-300149437.html
- https://www.pharmacytimes.com/view/novo-nordisk-launches-tresiba-biologic-analog-insulin-to-expand-affordability-options
- https://www.novopricing.com/colorado/tresiba.html
- https://medex.com.bd/generics/612/insulin-degludec/brand-names
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