Digestive System Home > MiraLAX and Breastfeeding

No research has been done to determine if MiraLAX (polyethylene glycol 3350) passes through breast milk. Because this laxative is not absorbed into the bloodstream, it is unlikely that it would be passed through breast milk or cause problems for an infant. However, because all of the potential risks are unknown, consult your healthcare provider if you are thinking of breastfeeding while using MiraLAX.

Is It Safe to Use MiraLAX While Breastfeeding?

It is unknown whether MiraLAX® (polyethylene glycol 3350) passes through breast milk. Therefore, if you are breastfeeding a child, talk with your healthcare provider before using this laxative.
 

More Information on Breastfeeding and MiraLAX

No research has been done to see if MiraLAX passes through breast milk. Because the medication is not absorbed into the bloodstream after use, it is unlikely that the drug would reach the breast milk to be passed to an infant. However, because MiraLAX has not been studied in women who are breastfeeding, every potential problem cannot yet be ruled out.
 
If you require treatment for constipation while breastfeeding, your healthcare provider may recommend other options, such dietary changes, adequate fluid intake, or exercising within your ability. If medication is needed, your healthcare provider may recommend MiraLAX if safer alternatives are not an option.
 

Talking With Your Healthcare Provider

You should discuss breastfeeding and MiraLAX use 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;
Last updated/reviewed:
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