5 to 15 minutes
1 to 2 hours
2 to 4 hours
30 to 45 minutes
4 to 8 hours
10 to 16 hours
NPH and regular insulin
1 to 2 hours/ some increase at 4 to 8 hours
2 to 3 hours/
*The long-acting insulin may work the best between four and eight hours.
**Lantus and Levemir cannot be mixed with any other insulin.
The insulin you inject only lowers your blood glucose. It does not cross the placenta to your baby.
Most insulins are available in a pre-filled pen you throw away after use. See the product insert for specific use guidelines.
Source: Allina Health's Patient Education Department, Gestational Diabetes: When You Have Diabetes During Pregnancy, third edition, ISBN 1-931876-21-6
Reviewed by Allina Health's Patient Education Department experts
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Gestational diabetes class
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