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Gestational diabetes: Time-action of different insulins


Insulins

Starts working

Peaks

Stops working

Rapid-acting

  • Humalog® (Lispro)
  • NovoLog® (Aspart)
  • Apidra® (Glulisine)



  • less than 15 minutes
  • 10 to 20 minutes
  • less than 15 minutes


  • 1/2 to 1 1/2 hours
  • 1 to 3 hours
  • 1 to 3 hours


  • less than 5 hours
  • 3 to 5 hours
  • 3 to 5 hours

Short-acting

  • Regular (R)



  • 30 minutes


  • 2 to 5 hours


  • 5 to 8 hours

Intermediate-acting

  • NPH (N)



  • 1 to 3 hours


  • 6 to 12 hours


  • 16 hours

Pre-mix*



  • less than 15 minutes
  • 30 minutes
  • 30 minutes


  • 1/2 to 10 hours
  • 3 to 10 hours
  • 3 to 10 hours


  • 16 to 20 hours
  • 16 to 20 hours
  • 10 to 12 hours

Basal**



  • 1 to 1 1/2 hours
  • 1 to 1 1/2 hours


  • no peak
  • no peak


  • 24 hours
  • 24 hours

*Pre-mixed insulins are a combination of longer-acting and shorter-acting insulins.

**Lantus and Levemir cannot be mixed with any other insulin.


How to help insulin work best

  • Take your insulin at the same time each day as directed
  • Take your insulin every day, even if you feel sick. If you can't eat your usual meal plan, see Sick day tips when taking insulin.
  • Don't change your meal plan, exercise, prescribed medications or insulin routines without talking to your health care provider.

Tip for Mom

The insulin you inject only lowers your blood glucose. It does not cross the placenta to your baby.



Related Links


 
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The best thing you can do is to consume as little caffeine as possible.

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Source: Allina Patient Education, Gestational Diabetes: When You Have Diabetes During Pregnancy, second edition, ISBN 1-931876-21-6

First published: 11/27/2006
Last updated: 11/27/2006

Reviewed by: Allina Patient Education experts

 


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