Furosemide

Drug Levels and Effects:




Summary of Use during Lactation:


Because no information is available on the use of furosemide during breastfeeding and because intense diuresis might decrease lactation, an alternate drug may be preferred, especially while nursing a newborn or preterm infant.


Drug Levels:


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.


Effects in Breastfed Infants:


Relevant published information was not found as of the revision date.


Possible Effects on Lactation:


Furosemide 20 mg intramuscularly on the first postpartum day followed by 40 mg orally for 4 days has been used in conjunction with fluid restriction and breast binding to suppress lactation within 3 days postpartum.[1] The added contribution of furosemide to fluid restriction and breast binding, which are effective in suppressing lactation, is not known. No data exist on the effects of loop diuretics on established lactation.


Alternate Drugs to Consider:


Chlorothiazide,Hydrochlorothiazide


References:


1. Cominos DC, Van Der Walt A, Van Rooyen AJ. Suppression of postpartum lactation with furosemide. S Afr Med J. 1976;50:251-2. PMID:3858



Substance Identification:




Substance Name:

Furosemide

CAS Registry Number:

54-31-9

Drug Class:


  • Antihypertensive Agents

  • Loop Diuretics


  • Administrative Information:




    LactMed Record Number:


    123


    Last Revision Date:


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