






Levemir 100IU/ml Flexpen
Written By Dr. Sakshi Jain, MS, BDS,
Reviewed By Dr. Mekhala Chandra, MD, MBBS,
Last updated on 13 Sep 2026 | 01:01 AM (IST)
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Product introduction
Levemir 100IU/ml Flexpen can be prescribed by itself or along with a fast-acting type of insulin or other diabetes medicines. Your doctor or nurse will teach you the correct way of injecting it under the skin. You should use this medicine regularly as per the dose advised to get the most benefit. If you stop taking it your blood sugar levels may rise very high and put you at risk of serious complications. It is only a part of the treatment program that should also include a healthy diet, regular exercise, and weight reduction as advised by your doctor.
The most common side effect of this medicine is low blood sugar levels (hypoglycemia). To prevent this, it is important to always inject the correct dose of medicine only, have regular meals, and monitor your blood sugar levels regularly. Drinking excessive alcohol can also lead to a fall in your blood sugar levels. Other side effects include allergy at the injection site like redness, swelling, or pain. Some people may even gain weight while taking insulin.
Do not use this medicine when you have low blood sugar levels (hypoglycemia). Tell your doctor if you have ever had kidney, liver or heart problems before starting treatment. It is generally regarded as safe for pregnant and breastfeeding women, if it has been prescribed by a doctor.
Uses of Levemir Solution for Injection
Benefits of Levemir Solution for Injection
Levemir 100IU/ml Flexpen is a long-acting type of insulin that provides steady, all-day sugar control. It replaces the insulin that is normally produced in the body. This helps the glucose get into your cells so your body can use it for energy. Lowering of blood sugar level helps reduce the risk of getting any of the serious complications of diabetes such as kidney damage, eye damage, nerve problems, and loss of limbs.
You will need to learn exactly how, where, and when to inject this insulin for it to be most effective. Taking this medicine regularly along with proper diet and exercise will help you live a normal, healthy life.
Side effects of Levemir Solution for Injection
- Limited data available
How to use Levemir Solution for Injection
How Levemir Solution for Injection works
Quick tips
- This medicine should be injected under the skin (subcutaneously) at the same time every day, as advised by your doctor.
- Injection below the skin of the abdomen results in faster absorption than other injection sites.
- Injection sites must be rotated to prevent hard lumps from developing at one site.
- Do not use if the preparation is no longer clear and colorless or if it contains particles.
- Hypoglycemia (low blood sugar level) is a common side effect. Learn how to identify and manage its symptoms (sweating, rapid heartbeat, weakness, blurry vision, headache) and teach your family as well.
- Opened vials/cartridges stay good at room temperature for up to 4 weeks, while unopened vials must be placed in the refrigerator (2°C–8°C).
Safety advice

Alcohol

Pregnancy

Breast feeding

Driving

Kidney
Regular monitoring of blood glucose levels is recommended for dose adjustment.

Liver
Regular monitoring of glucose levels is recommended for dose adjustment.

Interaction with drugs
Prednisolone (Oral Route)
Prednisolone (Oral Route)
Prednisolone (Oral Route)
Prednisolone (Oral Route)
Frequently asked questions
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References
- Powers AC, D’Alessio D. Endocrine Pancreas and Pharmacotherapy of Diabetes Mellitus and Hypoglycemia. In: Brunton LL, Chabner BA, Knollmann BC, editors. Goodman & Gilman’s: The Pharmacological Basis of Therapeutics. 12th ed. New York, New York: McGraw-Hill Medical; 2011. pp. 1251-52.
- Nolte MS. Pancreatic hormones and antidiabetic drugs. In: Katzung BG, Masters SB, Trevor AJ, editors. Basic and Clinical Pharmacology. 11th ed. New Delhi, India: Tata McGraw Hill Education Private Limited; 2009. pp. 734.
- Briggs GG, Freeman RK, editors. A Reference Guide to Fetal and Neonatal Risk: Drugs in Pregnancy and Lactation. 10th ed. Philadelphia, PA: Wolters Kluwer Health; 2015. pp. 719.
- Insulin detemir. Bagsvaerd, Denmark: Novo Nordisk A/S; 2005 [revised Jan. 2012]. [Accessed 12 Mar. 2019] (online) Available from:
- Chaves RG, Lamounier JA. Breastfeeding and maternal medications. J Pediatr (Rio J). 2004;80(5 Suppl):S189-98. [Accessed 12 Mar. 2019] (online) Available from:
- Insulin detemir [Package leaflet: Information for the user
]. Bagsværd, Denmark: Novo Nordisk A/S; 2022. [Accessed 05 Jul. 2023]. (online) Available from:
- Insulin detemir. Bagsværd, Denmark: Novo Nordisk; 2009.




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Address: Plot No.32, 47-50, EPIP Area, Whitefield, Bangalore - 560 066
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Lab tests offered by us
- CBC (Complete Blood Count)
- FBS (Fasting Blood Sugar)
- Thyroid Profile Total (T3, T4 & TSH)
- HbA1c (Glycosylated Hemoglobin)
- PPBS (Postprandial Blood Sugar)
- Lipid Profile
- Vitamin D (25-Hydroxy)
- Urine R/M (Urine Routine & Microscopy)
- Coronavirus Covid -19 test- RT PCR
- LFT (Liver Function Test)
- KFT (Kidney Function Test)
- TSH (Thyroid Stimulating Hormone) Ultrasensitive
- ESR (Erythrocyte Sedimentation Rate)
- Uric Acid, Serum
- Vitamin B12
- CRP (C-Reactive Protein), Quantitative
- Urine C/S (Urine Culture and Sensitivity)
- Serum Electrolytes
- Serum Calcium
- Serum Creatinine
- Diabetes Screening (HbA1C & Fasting Sugar)
- KFT with Electrolytes (Kidney Function Test with Electrolytes)
- Cholesterol - Total
- Hb (Hemoglobin)
- Complete Hemogram (CBC & ESR)


















