Prostate Cancer Home > Nilandron and Breastfeeding

No research has been done to determine if Nilandron (nilutamide) passes through breast milk. However, this medicine is only approved for use in men who have prostate cancer, so there is no reason why a breastfeeding woman should take Nilandron. If you are nursing and take this medication, talk to your healthcare provider.

Can Breastfeeding Women Use Nilandron?

Nilandron® (nilutamide) is a prescription medication used in men with advanced prostate cancer. It is approved for use in combination with surgical castration (surgical removal of the testicles, known medically as orchiectomy). Nilandron is in a class of medicines called antiandrogens.
Nilandron is not approved for use in women. Talk with your healthcare provider prior to taking this medication if you are breastfeeding.

More Information on Nilandron and Breastfeeding

No research has been done to study Nilandron use while breastfeeding. Therefore, it is unknown if the medication passes through breast milk or if it would harm a nursing child. It is also unknown if Nilandron has an effect on breast milk supply.
Although this lack of information is certainly frustrating, it is important to understand that studies of medications are rarely done in breastfeeding women, as this would usually expose an infant (who will not directly benefit from the medication) to possible risks. In addition, because Nilandron is not approved for use in women, there is little incentive to study this medication in women who are nursing.

Talking With Your Healthcare Provider

Because Nilandron is only approved to treat prostate cancer in men, it is not intended for use in women. However, if a woman does take this medication while breastfeeding, she should consult with her healthcare provider.
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
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