St. Luke's Hospital
Located in Chesterfield, MO
Main Number: 314-434-1500
Emergency Dept: 314-205-6990 Patient Billing: 888-924-9200
Find a Physician Payment Options Locations & Directions
Follow us on: facebook twitter Mobile Email Page Email Page Print Page Print Page Increase Font Size Decrease Font Size Font Size
Meet the Doctor
Spirit of Women
Community Health Needs Assessment
Home > Health Information

Health Care Guides

Types of insulin

When you have type 2 diabetes, your pancreas still produces insulin. Over time, however, less and less of this hormone may be produced. This leads to the need to rely on insulin injections to control your blood glucose levels. Insulin injections may be added while continuing the use of diabetes pills.

Insulin, because it can improve blood glucose control, often will lead to a better quality of life and prevent or delay the complications and side effects of diabetes.

Insulin is divided into categories which are based on:

  • How fast they start to work
  • When they reach the peak of their action
  • How long they stay in your system
Types of InsulinNames of InsulinHow Fast They StartWhen the Action PeaksHow Long They Last

Rapid Acting



5 - 15 minutes

30 - 90 minutes

1 - 3 hours

3 - 5 hours

Short Acting


1/2 - 1 hour

2 - 4 hours

6 - 8 hours



1 - 2 hours

6 - 10 hours

10 - 16 hours

Long Acting



1 - 2 hours

No peak action

18 - 24 hours

There are also combination insulin mixtures that are premixed, such as:

  • 75/25 mix: 75% NPH (intermediate-acting) and 25% Lispro (rapid-acting)
  • 70/30 mix: 70% NPH and 30% Regular (short-acting)
  • 50/50 mix: 50% NPH and 50% Regular

Each person responds differently to insulin. Your doctor will determine the best type of insulin and the best insulin schedule for you.


Main Menu

Review Date: 7/8/2012
Reviewed By: Nancy J. Rennert, MD, Chief of Endocrinology & Diabetes, Norwalk Hospital, Associate Clinical Professor of Medicine, Yale University School of Medicine, New Haven, CT. Review provided by VeriMed Healthcare Network. Previoulsy reviewed by Ari S. Eckman, MD, Division of Endocrinology and Metabolism, Johns Hopkins School of Medicine, Baltimore, MD. Review provided by VeriMed Healthcare Network. (5/13/2010)
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.

Back  |  Top
About Us
Contact Us
Locations & Directions
Quality Reports
Annual Reports
Honors & Awards
Community Health Needs

Brain & Spine
Sleep Medicine
Urgent Care
Women's Services
All Services
Patients & Visitors
Locations & Directions
Find a Physician
Tour St. Luke's
Patient & Visitor Information
Contact Us
Payment Options
Financial Assistance
Send a Card
Mammogram Appointments
Health Tools
My Personal Health
Spirit of Women
Health Information & Tools
Clinical Trials
Employer Programs -
Passport to Wellness

Classes & Events
Classes & Events
Spirit of Women
Donate & Volunteer
Giving Opportunities
Physicians & Employees
For Physicians
Remote Access
Medical Residency Information
Pharmacy Residency Information
Physician CPOE Training
St. Luke's Hospital - 232 South Woods Mill Road - Chesterfield, MO 63017 Main Number: 314-434-1500 Emergency Dept: 314-205-6990 Patient Billing: 888-924-9200
Copyright © St. Luke's Hospital Website Terms and Conditions  |  Privacy Policy  |  Notice of Privacy Practices PDF  |  Patient Rights PDF Sitemap St. Luke's Mobile