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Labetalol does pass through breast milk, which means that side effects could occur in your infant. However, the benefits of taking this drug while nursing often outweigh the risks. If you are thinking about breastfeeding while taking labetalol, be sure to talk to your healthcare provider about the potential risks.

Labetalol and Breastfeeding: An Overview

Labetalol (Trandate®) passes through breast milk in humans. It is a "beta blocker" medication that is used to lower blood pressure. It can cause serious problems in a nursing infant. Therefore, you should talk with your healthcare provider before taking this drug if you are breastfeeding or plan to start.

Can I Take This Medicine While Breastfeeding?

In many cases, the benefits of taking labetalol while nursing outweigh the small risk this poses for the infant. While labetalol passes through breast milk in small amounts, problems such as a dangerously slow heart rate, low blood pressure, and low blood sugar may occur. There has been one case of a slow heart rate and irregular heart rhythm in a premature breastfed newborn (born at 26 weeks) whose mother was taking this medication.

Talking With Your Healthcare Provider About Breastfeeding and Labetalol

You should discuss labetalol and breastfeeding with your healthcare provider. 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 that is right for you.
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
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