Premarin and Breastfeeding

Research on Premarin and breastfeeding indicates that the hormones in Premarin do pass through breast milk in low amounts. Although these small amounts are probably too low to cause significant problems in a breastfed infant, Premarin may decrease the production and quality of breast milk. Before taking Premarin and breastfeeding, make sure to talk to your healthcare provider.

 

Is Premarin During Breastfeeding Safe?

Premarin® (conjugated estrogens) is a prescription medication that is most often used to treat menopause symptoms. The estrogen hormones in Premarin do pass through breast milk and may decrease the quality and quantity of breast milk. Therefore, make sure to check with your healthcare provider before taking Premarin if you are breastfeeding.
 

What Does the Research Say About Premarin and Breastfeeding?

Research suggests that the hormones in Premarin pass through breast milk in low amounts. These small amounts are probably too low to cause significant or long-lasting problems in breastfeeding infants.
 
It's important to note that the estrogen hormones in Premarin may decrease the production and quality of breast milk. For this reason, estrogen-containing medications (including Premarin and many birth control pills) are not usually recommended for women who are breastfeeding.
 

Talking With Your Healthcare Provider About Premarin and Breastfeeding

You should talk with your healthcare provider about Premarin 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, you and your healthcare provider can make a shared decision about Premarin and breastfeeding that is right for you.
 
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Written by/reviewed by: Kristi Monson, PharmD; Arthur Schoenstadt, MD
Last reviewed by: Kristi Monson, PharmD;