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Insulin lispro / insulin lispro protamine Pregnancy and Breastfeeding Warnings

Insulin lispro / insulin lispro protamine is also known as: Humalog Mix 50/50, Humalog Mix 50/50 KwikPen, Humalog Mix 50/50 Pen, Humalog Mix 75/25, Humalog Mix 75/25 KwikPen, Humalog Mix 75/25 Pen

Medically reviewed on Jun 25, 2018

Insulin lispro / insulin lispro protamine Pregnancy Warnings

Pregnancies complicated by hyperglycemia pose an increased risk of birth defects, pregnancy loss, or other adverse events. When compared to human insulin, insulin lispro has not shown any adverse effect on pregnancy or on the health of the fetus. Patients with diabetes or a history of gestational diabetes should maintain good metabolic control before conception and during pregnancy. There are no adequate and well-controlled studies of insulin lispro or this combination insulin in pregnant women.

AU TGA pregnancy category A: Drugs which have been taken by a large number of pregnant women and women of childbearing age without any proven increase in the frequency of malformations or other direct or indirect harmful effects on the fetus having been observed.

US FDA pregnancy category 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.

Use is considered acceptable

AU TGA pregnancy category: A
US FDA pregnancy category: B

Comments:
-Good glycemic control is essential for patients with diabetes or a history of gestational diabetes before conception and throughout pregnancy.
-Insulin requirements may decrease during the first trimester; generally increase during the second and third trimesters, and rapidly decline after delivery

See references

Insulin lispro / insulin lispro protamine Breastfeeding Warnings

Use is considered acceptable

Excreted into human milk: Yes

Breast-feeding mothers may require adjustments in insulin dose.

Exogenous insulins, including the newer biosynthetic insulins (i.e. aspart, detemir, glargine, glulisine, lispro) appear to be excreted into breast milk. Insulin is a protein that is inactivated if taken by mouth. If absorbed, it would be destroyed in the digestive tract of the infant.

Lactation onset occurs later in women with type 1 diabetes, and there is an even greater delay in those with poor glucose control. However, once established lactation persists as long in mothers with diabetes as in mothers without. Insulin requirements are generally lower in women who breastfeed, most likely due to glucose being used for milk production.

See references

References for pregnancy information

  1. "Product Information. Humalog Mix75/25 (insulin lispro-insulin lispro protamine)" Lilly, Eli and Company, Indianapolis, IN.
  2. Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0
  3. Cerner Multum, Inc. "Australian Product Information." O 0
  4. Briggs GG, Freeman RK, Yaffe SJ.. "Drugs in Pregnancy and Lactation. 5th ed." Baltimore, MD: Williams & Wilkins (1998):

References for breastfeeding information

  1. Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0
  2. Cerner Multum, Inc. "Australian Product Information." O 0
  3. "Product Information. Humalog Mix75/25 (insulin lispro-insulin lispro protamine)" Lilly, Eli and Company, Indianapolis, IN.
  4. United States National Library of Medicine "Toxnet. Toxicology Data Network. Available from: URL: http://toxnet.nlm.nih.gov/cgi-bin/sis/htmlgen?LACT." ([cited 2013 -]):
  5. Briggs GG, Freeman RK, Yaffe SJ.. "Drugs in Pregnancy and Lactation. 5th ed." Baltimore, MD: Williams & Wilkins (1998):

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

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