Humalog and Breastfeeding
Since no studies have been conducted on Humalog (insulin lispro) and breastfeeding, it is not known whether the drug passes through breast milk. However, insulin is a protein that is digested and will be inactivated when taken by mouth. If you are using Humalog and breastfeeding (or thinking about breastfeeding), be sure to talk to your healthcare provider about any potential risks.
At this time, it is not known whether Humalog® (insulin lispro) passes through breast milk, although it is not predicted to cause problems when used during breastfeeding. Most healthcare providers consider Humalog safe for breastfeeding women -- safer than most oral diabetes medications. However, you should still talk with your healthcare provider before taking Humalog if you are breastfeeding or plan to start.
No studies have been conducted to see if Humalog passes through breast milk. However, even if it does pass through breast milk, the drug would be destroyed in the digestive tract of the infant. Insulin (including Humalog) is a protein that is digested and made inactivate when taken by mouth. This is why insulin cannot be taken by mouth. Almost all healthcare providers are comfortable recommending Humalog to women who are breastfeeding.
You should talk with your healthcare provider about Humalog and breastfeeding. Each woman's situation is different, and you and your healthcare provider understand your situation best. After considering what you want and expect, as well as your current health situation, the two of you can make a shared decision about Humalog and breastfeeding that is right for you.