Is Bumetanide safe while breastfeeding?
Here is what LactMed, the Drugs and Lactation Database published by the U.S. National Institute of Child Health and Human Development (NICHD), reports about Bumetanide. The text below is quoted from that source — it is not our own verdict.
Summary of use during breastfeeding
It is unknown if bumetanide is excreted into breastmilk. It should be avoided while breastfeeding a newborn because it may decrease milk flow or completely suppress lactation. Low doses in mothers whose lactation is well established are unlikely to suppress lactation.
Effects on the breastfed infant
Relevant published information was not found as of the revision date.
Effects on milk supply
Relevant published information on bumetanide was not found as of the revision date. Intense diuresis, fluid restriction and breast binding have been used to suppress lactation immediately postpartum.[1-4] The added contribution of the diuretic to the other measures, which are effective in suppressing lactation, has not been studied. No data exist on the effects of loop diuretics on established, ongoing lactation.
Levels in milk
Maternal Levels. Relevant published information was not found as of the revision date.
Infant Levels. Relevant published information was not found as of the revision date.
Alternatives LactMed lists
Bumetanide in pregnancy
LactMed covers breastfeeding only. For what the NHS and the US prescribing label say about pregnancy, see:
Source: Drugs and Lactation Database (LactMed), National Institute of Child Health and Human Development (NICHD), via NCBI Bookshelf, record “Bumetanide” (LM36). LactMed on NCBI Bookshelf. LactMed is a registered trademark of the U.S. Department of Health and Human Services.
Educational summary of an authoritative source — not medical advice. Never start, stop, or change a medicine while breastfeeding without confirming with your doctor.