Magnesium hydroxide Pregnancy and Breastfeeding Warnings
Medically reviewed on December 9, 2016
Magnesium hydroxide Pregnancy Warnings
Magnesium hydroxide has not been assigned to a pregnancy category by the FDA. There are no controlled data in human pregnancy. Other magnesium salts (such as magnesium sulfate) have been used extensively during pregnancy in large doses with no reports of congenital defects. Magnesium hydroxide should only be given in pregnancy when benefit outweighs risk.
Magnesium hydroxide Breastfeeding Warnings
There are no data on the excretion of magnesium hydroxide into human milk. Because only small amounts of magnesium are systemically absorbed following oral administration of magnesium hydroxide, adverse effects in nursing infants would not be expected. The American Academy of Pediatrics considers other magnesium salts (like magnesium sulfate) to be compatible with breast-feeding.
References for pregnancy information
- Briggs GG, Freeman RK, Yaffe SJ.. "Drugs in Pregnancy and Lactation. 5th ed." Baltimore, MD: Williams & Wilkins (1998):
References for breastfeeding information
- Committee on Drugs, 1992 to 1993 "The transfer of drugs and other chemicals into human milk." Pediatrics 93 (1994): 137-50