I am a breastfeeding mother and i want to know if it is safe to use Magnesium Hydroxide? Is Magnesium Hydroxide safe for nursing mother and child? Does Magnesium Hydroxide extracts into breast milk? Does Magnesium Hydroxide has any long term or short term side effects on infants? Can Magnesium Hydroxide influence milk supply or can Magnesium Hydroxide decrease milk supply in lactating mothers?

Magnesium Hydroxide lactation summary

Magnesium Hydroxide is safe in breastfeeding
  • DrLact safety Score for Magnesium Hydroxide is 1 out of 8 which is considered Safe as per our analyses.
  • A safety Score of 1 indicates that usage of Magnesium Hydroxide is mostly safe during lactation for breastfed baby.
  • Our study of different scientific research also indicates that Magnesium Hydroxide does not cause any serious side effects in breastfeeding mothers.
  • Most of scientific studies and research papers declaring usage of Magnesium Hydroxide safe in breastfeeding are based on normal dosage and may not hold true for higher dosage.
  • Score calculated using the DrLact safety Version 1.2 model, this score ranges from 0 to 8 and measures overall safety of drug in lactation. Scores are primarily calculated using publicly available case studies, research papers, other scientific journals and publically available data.

Answer by Dr. Ru: About Magnesium Hydroxide usage in lactation

Ingested Magnesium does not concentrate into breast milk.. Naturally occurring, the mean Magnesium concentration in the milk is 31 mg/L (range 15 – 64 mg/L) and not affected by the ingestion of Magnesium. Because of a low oral bioavailability the pass from the breast milk toward the infant's plasma is hampered, except in premature and newborn infants who may exhibit a higher intestinal absorption due to an increased permeability. Avoid chronic or excessive use. WHO Model List of Essential Medicines 2002: Magnesium hydroxide is compatible with breastfeeding.

Answer by DrLact: About Magnesium Hydroxide usage in lactation

A study on the use of magnesium hydroxide during breastfeeding found no adverse reactions in breastfed infants. Intravenous magnesium increases milk magnesium concentrations only slightly. Oral absorption of magnesium by the infant is poor, so maternal magnesium hydroxide is not expected to affect the breastfed infant's serum magnesium. Magnesium hydroxide supplementation during pregnancy might delay the onset of lactation, but it can be taken during breastfeeding and no special precautions are required.

Magnesium Hydroxide Side Effects in Breastfeeding

Fifty mothers who were in the first day postpartum received 15 mL of either mineral oil or an emulsion of mineral oil and magnesium hydroxide equivalent to 900 mg of magnesium hydroxide, although the exact number who received each product was not stated. Additional doses were given on subsequent days if needed. None of the breastfed infants were noted to have any markedly abnormal stools, but all of the infants also received supplemental feedings.[2]

Magnesium Hydroxide Possible Effects in Breastfeeding

One mother who received intravenous magnesium sulfate for 3 days for pregnancy-induced hypertension had lactogenesis II delayed until day 10 postpartum. No other specific cause was found for the delay, although a complete work-up was not done.[3] A subsequent controlled clinical trial found no evidence of delayed lactation in mothers who received intravenous magnesium sulfate therapy.[4] Some, but not all, studies have found a trend toward increased time to the first feeding or decreased sucking in infants of mothers treated with intravenous magnesium sulfate during labor because of placental transfer of magnesium to the fetus.[4][5] A study in 40 pairs of matched healthy women with vaginally delivered singleton pregnancies, outcome endpoints were compared in those receiving continuous oral magnesium aspartate HCl supplementation mean dose of 459 mg daily (range 365 to 729 mg of magnesium daily) for at least 4 weeks before delivery versus non-supplemented controls. In the magnesium group, significantly fewer women could breastfeed their infants exclusively at discharge (63% vs 80%).[6]
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