Baclofen Pregnancy and Breastfeeding Warnings

Baclofen Pregnancy Warnings

This drug should be used during pregnancy only if the benefit outweighs the risk.

AU TGA pregnancy category: B3
US FDA pregnancy category: Not Assigned

This drug given orally in animal studies has been shown to increase the incidence of omphaloceles (ventral hernias) in fetuses at approximately 13 times on a mg/kg basis, or 3 times on a mg/m2 basis, the maximum oral dose recommended for humans; this dose also caused reductions in food intake and weight gain in the dams. There are no controlled data in human pregnancy. It is not known whether this drug can cause fetal harm or adversely affect reproductive capacity in humans.

AU TGA pregnancy category B3: 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 have shown evidence of an increased occurrence of fetal damage, the significance of which is considered uncertain in humans.

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.

Baclofen Breastfeeding Warnings

Limited information indicates that this drug appears in low levels in milk and would not be expected to cause any adverse effects in breastfed infants, especially if the infant is older than 2 months. Newborn infants should be monitored for signs of sedation.

Benefit should outweigh risk.

Excreted into human milk: Yes (in small amounts)

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