Table 6.2-15. Medical management of diabetes during pregnancy

 

Duration

Onset

Time to peak

Peak effect

Pregnancy risk factor

Oral agents

Biguanides: Metformin

 

 

 

 

B

 

Immediate-release

4-9 h

2-3 h

 

Extended-release

 

7 h

 

Sulfonylureas

 

 

 

 

 

Glyburide

<24 h

2-4 h

B/C

Insulin

Rapid-acting

 

 

 

 

 

 

Lispro

15-30 min

0.5-3 h

Not assigned

Aspart

12-30 min

1-2 h

Not assigned

Glulisine

4 min

0.5-1.5 h

C

Regular

15-30 min

2.5-5 h

B

Intermediate-acting

 

 

 

 

 

 

NPH

10-12 h

1-2 h

4-12 h

B

Long-acting

 

 

 

 

 

 

Detemir

24 h

3-4 h

3-9 h

B

Glargine

24 h

3-4 h

No peak

Not assigned

Degludec

42 h

1 h

No peak

Not assigned

B: Animal reproduction studies have failed to demonstrate a risk to the fetus and there are no adequate and well-controlled studies in pregnant women.

C: Animal reproduction studies have shown an adverse effect on the fetus and there are no adequate and well-controlled studies in humans, but potential benefits may warrant use of the drug in pregnant women despite potential risks.

NPH, insulin isophane (intermediate-acting human insulin).