Insulin therapy is a critical part of treatment for people with type 1 diabetes and also for many with type 2 diabetes. The goal of insulin therapy is to maintain blood sugar levels within your target range.
Insulin is usually administered in the fat under your skin using a syringe, insulin pen or insulin pump. Which insulin regimen is best for you depends on factors such as the type of diabetes you have, how much your blood sugar fluctuates throughout the day and your lifestyle.
Each insulin type is characterized by:
- How long it takes to begin working (onset)
- When it's working the hardest (peak)
- How long it lasts, ranging from about 3 to 26 hours
Many types of insulin are available. Here's how they compare. Keep in mind that your doctor may prescribe a mixture of insulin types to use throughout the day and night.
|Insulin type and name
||How long it lasts
Insulin aspart (NovoLog)
Insulin glulisine (Apidra)
Insulin lispro (Humalog)
Insulin regular (Humulin R, Novolin R)
Insulin NPH (Humulin N, Novolin N)
Insulin glargine (Lantus/ Toujeo)
Insulin detemir (Levemir)
||No clear peak
In some cases, premixed insulin — a combination of specific proportions of intermediate-acting and short- or rapid-acting insulin in one bottle or insulin pen — may be an option.
Sept. 27, 2016
- Types of insulin. National Institute of Diabetes and Digestive and Kidney Diseases. http://diabetes.niddk.nih.gov/dm/pubs/medicines_ez/insert_C.htm. Accessed Aug. 18, 2016.
- Insulin basics. American Diabetes Association. http://www.diabetes.org/living-with-diabetes/treatment-and-care/medication/insulin/insulin-basics.html. Accessed Aug. 18, 2016.
- McCulloch DK. General principles of insulin therapy in diabetes mellitus. http://www.uptodate.com/home. Accessed Aug. 18, 2016.
- Medical treatment. In: Mayo Clinic The Essential Diabetes Book. 2nd edition. Mayo Foundation for Medical Education and Research. 2014.