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Magnesium gluconate Pregnancy and Breastfeeding Warnings

Medically reviewed by Last updated on Jan 2, 2023.

Magnesium gluconate is also known as: Almora, Mag-G, Magonate Natal, Magtrate, Optimum Magnesium Gluconate

Magnesium gluconate Pregnancy Warnings

Animal studies are not available. There are no controlled data in human pregnancy. The background birth defect and miscarriage risk for the indicated population is not known. In the US general population, the estimated major birth defect risk is 2 to 4% and the miscarriage risk is 15 to 20%.

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.

This drug has been used without apparent harmful effects.

US FDA pregnancy category: Not assigned

-There is no data on use in pregnant women to know this drugs risks, including the risk of fetal harm or reproductive effects.
-Magnesium may be effective for preeclampsia and eclampsia.
-The US Recommended Dietary Allowance of magnesium during pregnancy is increased compared to non-pregnant women.
-A Cochran review found no significant reduction in perinatal mortality, small for gestational age children, or pre-eclampsia with supplemental magnesium use during pregnancy.

See references

Magnesium gluconate Breastfeeding Warnings

Use is generally considered acceptable; benefit to mother should outweigh risk to the infant.

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

-There is no information regarding this drug on the presence in human milk, the effects on a breastfed infant, or effects on milk production.
-Consider the developmental and health benefits of breastfeeding along with the mother's clinical need for this medication as well as any potential adverse effects from this drug or the underlying maternal condition.
-The US Recommended Dietary Allowance of magnesium during lactation is the same as for non-lactating women.

See references

References for pregnancy information

  1. Guerrera MP, Volpe SL, Mao JJ "Therapeutic uses of magnesium." Am Fam Physician 80 (2009): 157-62
  2. National Institutes of Health "Magnesium: Fact sheet for Health Professionals. 371109" (2018):
  3. Makrides M, Crosby DD, Bain E, Crowther CA "Magnesium supplementation in pregnancy." Cochrane Database Syst Rev 4 (2014):

References for breastfeeding information

  1. Nice FJ, Snyder JL, Kotansky BC "Breastfeeding and over-the-counter medications." J Hum Lact 16 (2000): 319-31
  2. National Institutes of Health "Magnesium: Fact sheet for Health Professionals. 371109" (2018):

Further information

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