Hydralazine use while Breastfeeding

Drugs containing Hydralazine: Apresoline, BiDil, HydrALAZINE Plus, HHR, Serathide, Serpazide, Apresazide, Hydrap-ES, Unipres, Serpex, Show all 16 »Marpres, Ser-Ap-Es, Hydra-Zide, Diuretic Ap-Es, Uni Serp, Tri-Hydroserpine

Hydralazine Levels and Effects while Breastfeeding

Summary of Use during Lactation

Limited milk level and infant data and a long history of use in postpartum mothers indicate that hydralazine is an acceptable antihypertensive in nursing mothers, even those nursing newborns.

Drug Levels

Maternal Levels In one case report, a mother taking oral hydralazine 50 mg 3 times daily for at least 8 weeks postpartum had hydralazine milk levels of about 130 mcg/L at 0.5 and 2 hours after a dose. In addition, milk contained an amount of acid-labile hydrazones with undefined pharmacologic activity. The authors estimated that a breastfed infant would receive a maximum of 13 mcg per feeding at this maternal dosage.[1]

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

Effects in Breastfed Infants

No adverse effects reported in one infant breastfed for 8 weeks.[1]

Possible Effects on Lactation

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

Alternate Drugs to Consider

Enalapril, Hydrochlorothiazide, Methyldopa, Propranolol

References

1. Liedholm H, Wahlin-Boll E, Hanson A et al. Transplacental passage and breast milk concentration of hydralazine. Eur J Clin Pharmacol. 1982;21:417-9. PMID: 7200428

Hydralazine Identification

Substance Name

Hydralazine

CAS Registry Number

86-54-4

Drug Class

  • Antihypertensive Agents
  • Vasodilator Agents

Administrative Information

LactMed Record Number

136

Information from the National Library of Medicine's LactMed Database.

Last Revision Date

2012-05-03

Disclaimer

Information presented in this database is not meant as a substitute for professional judgment. You should consult your healthcare provider for breastfeeding advice related to your particular situation. The U.S. government does not warrant or assume any liability or responsibility for the accuracy or completeness of the information on this Site.

See Also...

Disclaimer: This information is not intended as a substitute for professional judgment. You should consult your healthcare provider for breastfeeding advice related to your particular situation. Use of this website signifies your agreement to the Terms of Use and Online Privacy Policy.

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