Prostate Cancer Home > Vantas and Breastfeeding

Because Vantas (histrelin implant) is only approved for use in men with prostate cancer, there is no reason for women to use this drug, including women who are breastfeeding. Vantas has not been studied in women who are nursing, so the potential risks to the infant are unknown. The manufacturer of the drug recommends that women not use this drug while breastfeeding.

Can Breastfeeding Women Use Vantas?

Vantas® (histrelin implant) is a long-acting prescription implant. It is approved to treat the symptoms of metastatic prostate cancer (prostate cancer that has spread beyond the prostate to other areas of the body). It is a synthetic form of gonadotropin-releasing hormone (GnRH), a hormone that helps control the production of estrogen and testosterone in the body.
 
At this time, it is unknown if Vantas passes through breast milk. The implant is not recommended for use in women who are nursing a child.
 

More Information on Vantas and Breastfeeding

Vantas has not been studied in breastfeeding women, so it is unknown if the drug passes through breast milk. Also, it is unknown if Vantas would affect breast milk supply, or potentially harm a nursing child.
 
Many medicines pass through breast milk. For this reason, and because all of the potential risks to a nursing child are not known, the manufacturer of Vantas recommends that women not use this drug while breastfeeding. Furthermore, Vantas is only approved for use in men with prostate cancer. It has no officially approved uses in women, including those who are breastfeeding.
 

Talking With Your Healthcare Provider

You should discuss breastfeeding and Vantas 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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