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Esterified estrogens Pregnancy and Breastfeeding Warnings

Medically reviewed by Last updated on Apr 3, 2023.

Esterified estrogens is also known as: Estratab, Menest

Esterified estrogens Pregnancy Warnings

Use is contraindicated

US FDA pregnancy category: Not assigned

Risk Summary: There is no indication for use of this drug in pregnancy; there appears to be little or no increased risk of birth defects in children born to women who have used estrogens from oral contraceptives inadvertently during early pregnancy.

There are no controlled data in human pregnancy.

US FDA pregnancy category Not Assigned: The US FDA has amended the pregnancy labeling rule for prescription drug products to require labeling that includes a summary of risk, a discussion of the data supporting that summary, and relevant information to help health care providers make prescribing decisions and counsel women about the use of drugs during pregnancy. Pregnancy categories A, B, C, D, and X are being phased out.

See references

Esterified estrogens Breastfeeding Warnings

Caution is recommended

Excreted into human milk: Yes
Excreted into animal milk: Data not available

-Estrogen administration to nursing mothers has been shown to decrease the quantity and quality of breastmilk.

See references

References for pregnancy information

  1. "Product Information. Menest (esterified estrogens)." Pfizer U.S. Pharmaceuticals Group (2019):

References for breastfeeding information

  1. "Product Information. Menest (esterified estrogens)." Pfizer U.S. Pharmaceuticals Group (2019):

Further information

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