Measles virus vaccine / mumps virus vaccine / rubella virus vaccine Pregnancy and Breastfeeding Warnings

Brand names: M-M-R II, Priorix

Medically reviewed by Drugs.com. Last updated on Dec 26, 2024.

Measles virus vaccine / mumps virus vaccine / rubella virus vaccine Pregnancy Warnings

Use is contraindicated.

AU TGA pregnancy category: B2
US FDA pregnancy category: Not assigned

Risk summary: No data are available on the use of this drug in pregnant women to inform a drug-related risk.

Comments:
-Pregnancy should be avoided for 1 month after vaccination

Animal studies have not been reported. There are no controlled data in human pregnancy.

Higher rates of spontaneous abortion, stillbirth, premature delivery, and congenital defects have been observed in cases of wild-type measles infection during pregnancy. Additionally, wild-type mumps infection during the first trimester of pregnancy may increase the risk of spontaneous abortion. Infection with wild-type rubella virus during pregnancy increases the risk of miscarriage or stillbirth for the mother, and puts the infant at risk for congenital rubella syndrome.

AU TGA pregnancy category B2: Drugs which have been taken by only a limited number of pregnant women and women of childbearing age, without an increase in the frequency of malformation or other direct or indirect harmful effects on the human fetus having been observed. Studies in animals are inadequate or may be lacking, but available data show no evidence of an increased occurrence of fetal damage.

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

Measles virus vaccine / mumps virus vaccine / rubella virus vaccine Breastfeeding Warnings

Benefit should outweigh risk.

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

Comments:
-Live attenuated rubella vaccine may secrete the virus in breast milk and transmit it to the infant.

See references

Further information

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