Phenylephrine and Breastfeeding

There has not been any research done on breastfeeding and phenylephrine in humans, so it is not known whether the drug passes through breast milk. However, based on the drug's structure, it is believed that phenylephrine would pass through breast milk. Animal studies have shown that this drug does decrease breast milk supply. If you are using this medication while breastfeeding, make sure to watch for any problems in your child.

An Overview of Breastfeeding and Phenylephrine

It is unknown if phenylephrine passes through breast milk. Therefore, if you are breastfeeding a child, talk with your healthcare provider before taking phenylephrine.

Is Taking Phenylephrine While Breastfeeding Safe?

No research has been done to see if phenylephrine passes through breast milk in humans. However, based on its chemical structure, phenylephrine probably does reach the breast milk.
In animal studies, phenylephrine (much like other decongestants) has been shown to decrease the supply of breast milk. This is probably not a problem for occasional doses (as the milk supply will recover) in women with a well-established milk supply. However, it may become a problem for women who take the medication frequently, are just starting to breastfeed, or are having milk supply problems.
If your healthcare provider decides that it is okay for you to take phenylephrine while breastfeeding, make sure to watch for irritability or any other problems in your child. If you notice a significant drop in your milk supply, it is probably best to avoid the medication.

Talking With Your Healthcare Provider

You should talk with your healthcare provider about breastfeeding and phenylephrine. 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.
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Phenylephrine Medication Information

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