Breast Cancer Home > Perjeta and Breastfeeding

Women are generally advised to not breastfeed while using Perjeta (pertuzumab), as it is not known whether this drug passes through breast milk or if it would cause problems in a nursing infant. If your healthcare provider does recommend using this medicine while nursing, make sure to watch for any side effects or changes in your child.

Can Breastfeeding Women Receive Perjeta?

It is unknown if Perjeta™ (pertuzumab) passes through breast milk. Because of the potentially serious side effects that could occur in a nursing infant, the manufacturer of the drug recommends that women not breastfeed while using Perjeta. Therefore, if you are breastfeeding or plan to start, talk to your healthcare provider before using this medication.

More Information on Perjeta and Breastfeeding

It is unknown if Perjeta passes through breast milk in humans. It is also not known what effects the drug could have on a young infant. If your healthcare provider recommends using Perjeta while nursing, make sure to watch for any side effects in your child.

Talking With Your Healthcare Provider

You should discuss Perjeta 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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