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Nafcillin Pregnancy and Breastfeeding Warnings

Nafcillin is also known as: Nallpen, Unipen

Medically reviewed on January 10, 2018

Nafcillin Pregnancy Warnings

Nafcillin has been assigned to pregnancy category B by the FDA. Animal studies have failed to reveal evidence of fetal harm. There are no controlled data in human pregnancies. Nafcillin should only be given during pregnancy when need has been clearly established.

See references

Nafcillin Breastfeeding Warnings

There are no data on the excretion of nafcillin into human milk. Other penicillins are excreted into human milk in small amounts. Adverse effects in the nursing infant are unlikely. The manufacturer recommends that caution be used when administering nafcillin to nursing women.

See references

References for pregnancy information

  1. "Product Information. Unipen (nafcillin)." Wyeth-Ayerst Laboratories, Philadelphia, PA.

References for breastfeeding information

  1. "Product Information. Unipen (nafcillin)." Wyeth-Ayerst Laboratories, Philadelphia, PA.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

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