European Journal of Clinical Pharmacology

, Volume 30, Issue 6, pp 737–739 | Cite as

To nurse when receiving acebutolol: Is it dangerous for the neonate?

  • M. J. Boutroy
  • G. Bianchetti
  • C. Dubruc
  • P. Vert
  • P. L. Morselli
Short Communications


The concentrations of acebutolol and of its main active metabolite diacetolol in milk and plasma were studied in 7 hypertensive mothers treated with acebutolol, a cardioselective β-adrenoceptor blocking agent. Clinical monitoring on their newborn babies was also done, as well as measurement of plasma level of the drug in them. The ratio between milk and plasma concentrations ranged from 1.9 to 9.2 for acebutolol and from 2.3 to 24.7 for diacetolol, and in any given milk sample, the diacetolol concentration was always higher than that of acebutolol. In a newborn infant, plasma concentrations of the two transplacentally acquired substances was raised when breast feeding started and remained high. Clinical signs of pharmacological β-blockade were observed. Evaluation of the iatrogenic risk shows that pharmacologically active amounts of acebutolol might be received by a neonate if the daily maternal dosage exceeds 400 mg/day and/or renal function in the mother is impaired.

Key words

acebutolol neonates beta-blocking agents perinatal pharmacology excretion in milk transplacental passage diacetolol neonatal beta-blockade 


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Copyright information

© Springer-Verlag 1986

Authors and Affiliations

  • M. J. Boutroy
    • 1
  • G. Bianchetti
    • 2
  • C. Dubruc
    • 2
  • P. Vert
    • 1
  • P. L. Morselli
    • 2
  1. 1.INSERM U. 272 and Service de Médecine Néonatale, Maternité RégionaleNancyFrance
  2. 2.Department of Clinical ResearchLERS SynthelaboParisFrance

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