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Human prescription drug, injected under the skina long-acting basal insulin analog, a long-acting insulin used to lower high blood sugar

Insulin Degludec

Insulin Degludec · Say it: in-SOO-lin de-GLOO-dek

A long-acting insulin injected under the skin once a day to help control blood sugar in people with diabetes.

Brand names: Tresiba

Reading levelLanguage

Used for

The label says it is used to improve blood sugar control in people 1 year of age and older with diabetes mellitus. The label also says it is not recommended for treating diabetic ketoacidosis.

Comes as

100 units/mL (U-100) in a 3 mL single-patient-use FlexTouch prefilled pen; 100 units/mL (U-100) in a 10 mL multiple-dose vial

Common side effects

Low blood sugar (hypoglycemia), which the label calls the most common side effect of insulin, Allergic reactions, Injection site reactions

Key facts
Generic nameInsulin Degludec
Brand namesTresiba
Type of medicinea long-acting basal insulin analog, a long-acting insulin used to lower high blood sugar
How it is soldHuman prescription drug, injected under the skin
Comes as100 units/mL (U-100) in a 3 mL single-patient-use FlexTouch prefilled pen; 100 units/mL (U-100) in a 10 mL multiple-dose vial; 200 units/mL (U-200) in a 3 mL single-patient-use FlexTouch prefilled pen
Routesubcutaneous
Boxed warningNo
Label date2024-05-31

💊 What is Insulin Degludec used for?

  • The label says it is used to improve blood sugar control in people 1 year of age and older with diabetes mellitus. The label also says it is not recommended for treating diabetic ketoacidosis.

How it works

How it is usually taken

  • The label says it is injected under the skin into the thigh, upper arm, or abdomen. Injection sites should be rotated within the same body region from one injection to the next. Adults are told to inject once daily at any time of day, and children once daily at the same time every day. The label says it must never be given into a vein or muscle, never used in an insulin infusion pump, and never diluted or mixed with other insulin or solutions. Only use it if the solution looks clear and colorless. Always check the insulin label before each injection. Follow the instructions from your prescriber or pharmacist and read the Instructions for Use that come with the product.

Comes as

  • 100 units/mL (U-100) in a 3 mL single-patient-use FlexTouch prefilled pen
  • 100 units/mL (U-100) in a 10 mL multiple-dose vial
  • 200 units/mL (U-200) in a 3 mL single-patient-use FlexTouch prefilled pen

⚠️ Insulin Degludec side effects

Common side effects

  • Low blood sugar (hypoglycemia), which the label calls the most common side effect of insulin
  • Allergic reactions
  • Injection site reactions
  • Lipodystrophy (changes in fat under the skin at injection sites)
  • Itching (pruritus)
  • Rash
  • Swelling (edema)
  • Weight gain

Get medical help right away if

  • Get medical help right away if you have low blood sugar that is severe. The label says severe low blood sugar can cause seizures and may be life-threatening or cause death.
  • Get medical help right away if you have a severe, life-threatening allergic reaction, including anaphylaxis. The label says the medicine should be stopped and the reaction treated if this happens.
  • Get medical help right away if you have symptoms of low potassium (hypokalemia). The label says this may be life-threatening.
  • Get medical help right away if you have signs of heart failure, such as swelling or trouble breathing, especially if you also take a thiazolidinedione (TZD). The label says this combination can cause fluid retention and heart failure.

🛑 Who should not take Insulin Degludec, and who should be careful

The label says not to take it if

  • You are having an episode of low blood sugar (hypoglycemia). The label says it is contraindicated during these episodes.
  • You are allergic to insulin degludec or any of its ingredients (excipients).

Tell your doctor before taking it if

  • Tell your healthcare provider about all your medical conditions, including if you are pregnant, planning to become pregnant, or breastfeeding.
  • Tell your healthcare provider about all new prescription or over-the-counter medicines, vitamins, or herbal supplements you take.
  • Talk with your healthcare provider about low blood sugar and how to manage it before you start.
  • Never share a FlexTouch pen, needle, or insulin syringe with another person, even if the needle is changed. The label says sharing can spread blood-borne infections.
  • Know the type and strength of insulin you use. Do not change insulin type unless your healthcare provider tells you to.

🔀 Insulin Degludec with other medicines, food and alcohol

The label says to discuss these with your doctor or pharmacist

  • The label lists drugs that may increase the risk of low blood sugar, including other diabetes medicines, ACE inhibitors, angiotensin II receptor blockers, fibrates, fluoxetine, MAO inhibitors, salicylates, sulfonamide antibiotics, GLP-1 receptor agonists, DPP-4 inhibitors, and SGLT-2 inhibitors.
  • The label lists drugs that may reduce its blood sugar lowering effect, including atypical antipsychotics, corticosteroids, diuretics, estrogens, glucagon, niacin, oral contraceptives, phenothiazines, protease inhibitors, somatropin, sympathomimetic agents such as albuterol and epinephrine, and thyroid hormones.
  • Alcohol, beta-blockers, clonidine, and lithium salts may either increase or decrease its effect.
  • Beta-blockers, clonidine, guanethidine, and reserpine may reduce or hide the warning signs of low blood sugar.
  • Pentamidine may cause low blood sugar, which may sometimes be followed by high blood sugar.
  • Thiazolidinediones (TZDs) may cause fluid retention and heart failure when used with this medicine.

Alcohol and food

The label says alcohol can change how much this medicine lowers blood sugar. It also says changes in meal patterns can affect blood sugar, so meal timing may need to be discussed with your healthcare provider.

🤰 Insulin Degludec in pregnancy and breastfeeding

Pregnancy

The label says available data have not identified a drug-related risk of major birth defects, miscarriage, or other adverse outcomes. It describes one trial of 91 pregnant women with type 1 diabetes, which showed no clear evidence of maternal or fetal risk. The label also notes that poorly controlled diabetes in pregnancy carries risks for the mother and baby. Animal studies at high exposures showed effects. Talk with your healthcare provider about pregnancy.

Breastfeeding

The label excerpt provided does not give specific breastfeeding information. Tell your healthcare provider if you are breastfeeding before you use this medicine.

🗓️ Storage, missed doses and taking too much

Storage

The label excerpt provided does not list storage temperatures. The label says to only use the medicine if the solution appears clear and colorless, and to follow the Instructions for Use for the pen or vial.

If a dose is missed

The label says for adults, take the missed or delayed dose as soon as you remember, then continue your regular schedule, and make sure there are at least 8 hours between doses. For children, the label says to call the healthcare provider for instructions on checking blood sugar more often until the next scheduled dose.

If too much is taken

The label says too much insulin relative to food intake or activity can cause severe, sometimes prolonged, life-threatening low blood sugar and low potassium. Mild low blood sugar is usually treated with oral glucose. Severe cases with coma, seizure, or nerve problems may need emergency glucagon or intravenous glucose. Get emergency medical help right away if this happens.

🗒️ Questions to ask about Insulin Degludec

🎯 Check what you understood

1. According to the summary, what is the most common side effect of insulin?

2. Can this medicine be shared with another person, even if the needle is changed?

3. Where does the label say this medicine should be injected?

❓ Insulin Degludec: frequently asked questions

What is insulin degludec used for?

The label says it is used to improve blood sugar control in people 1 year of age and older with diabetes mellitus. It is not recommended for treating diabetic ketoacidosis.

How is insulin degludec given?

The label says it is injected under the skin, not into a vein or muscle. Injection sites should be rotated within the same body region. Follow the instructions from your prescriber or pharmacist.

What is the main side effect to watch for?

The label says low blood sugar (hypoglycemia) is the most common side effect and can be severe. Severe low blood sugar can cause seizures and may be life-threatening.

Can I drink alcohol while using insulin degludec?

The label says alcohol can either increase or decrease the blood sugar lowering effect of this medicine. Ask your healthcare provider about alcohol use.

Is insulin degludec safe during pregnancy?

The label says available data have not identified a drug-related risk of major birth defects or miscarriage, but it also notes that poorly controlled diabetes carries risks. Talk with your healthcare provider about your situation.

🧪 Tests and reports linked to Insulin Degludec

The label text mentions these. If you have one of these reports, get every line of it explained.

📖 Medical words used on this page

  • Allergic reaction

    An allergic reaction is when the immune system overreacts to something harmless, such as a medicine or food, causing symptoms from a rash to swelling.

  • Anaphylaxis

    Anaphylaxis is a severe, whole-body allergic reaction that comes on fast and is a medical emergency needing urgent help.

  • Antibiotic

    An antibiotic is a medicine that kills bacteria or stops them growing; it treats bacterial infections, not viral ones like colds or flu.

  • Antipsychotic

    An antipsychotic is a medicine used for psychosis, schizophrenia and bipolar disorder, and sometimes for other conditions.

  • Atypical

    Atypical means cells look different from normal under the microscope, but not clearly enough to be called cancer.

  • Atypical antipsychotic

    An atypical antipsychotic is a newer type of antipsychotic medicine used for schizophrenia, bipolar disorder and sometimes depression or other conditions.

  • Beta-blocker

    A beta-blocker is a medicine that slows the heart and lowers its workload, used for blood pressure, angina, heart failure and some rhythm problems.

  • Congenital malformations

    Congenital malformations are differences in the structure of the body that are present at birth, such as heart, spine or lip and palate defects.

  • Contraindication

    A contraindication is a reason not to use a particular medicine, test or procedure for a person because it could cause harm.

  • Corticosteroid

    A corticosteroid is a medicine similar to the body's own hormone cortisol, used to reduce inflammation and calm the immune system.

  • Diabetic ketoacidosis

    Diabetic ketoacidosis (DKA) is a serious complication of diabetes where ketone acids build up in the blood. It is a medical emergency.

  • Diuretic

    A diuretic is a medicine that helps the kidneys remove extra salt and water from the body, so you pass more urine.

  • Edema

    Edema is swelling caused by extra fluid trapped in the body's tissues, often in the feet, ankles and legs.

  • Extended-Release

    Extended-release means a medicine is designed to release its active ingredient slowly over many hours, so it is often taken less often.

📖 Medical words on this page

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🧩 Similar medicines

  • Insulin Glargine · an insulin analog, a long-acting man-made insulin used to treat diabetes
  • Tirzepatide · a GIP and GLP-1 receptor agonist, a type of medicine that acts on gut hormone receptors to help improve blood sugar (glucose-dependent insulinotropic polypeptide receptor agonist and GLP-1 receptor agonist)
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Source: official FDA drug label (label updated 2024-05-31). Read the full label on DailyMed

MedicDecode explains the official label in plain words. It is not medical advice and does not replace your doctor or pharmacist. Never start, stop or change a medicine because of what you read here.