Carvedilol use while Breastfeeding
Drugs containing Carvedilol: Coreg, Coreg CR
Medically reviewed by Drugs.com. Last updated on Apr 2, 2019.
Carvedilol Levels and Effects while Breastfeeding
Summary of Use during Lactation
Based on its physicochemical properties, carvedilol appears to present a low-risk to the breastfed infant. Because there is no published experience with carvedilol during breastfeeding, other agents may be preferred, especially while nursing a newborn or preterm infant.
The excretion of beta-adrenergic blocking drugs into breastmilk is largely determined by their protein binding. Those with low binding are more extensively excreted into breastmilk. Accumulation of the drugs in the infant is related to the fraction excreted in urine. With 95% protein binding, 1% renal excretion and a moderately long half-life, carvedilol presents a low risk for accumulation in infants.
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
A study of mothers taking beta-blockers during nursing found a numerically, but not statistically significant increased number of adverse reactions in those taking any beta-blocker. Although the ages of infants were matched to control infants, the ages of the affected infants were not stated. None of the mothers were taking carvedilol.
Effects on Lactation and Breastmilk
Relevant published information on the effects of beta-blockade or carvedilol during normal lactation was not found as of the revision date. A study in 6 patients with hyperprolactinemia and galactorrhea found no changes in serum prolactin levels following beta-adrenergic blockade with propranolol.
Alternate Drugs to Consider
1. Riant P, Urien S, Albengres E et al. High plasma protein binding as a parameter in the selection of betablockers for lactating women. Biochem Pharmacol. 1986;35:4579-81. PMID: 2878668
2. Ho TK, Moretti ME, Schaeffer JK et al. Maternal beta-blocker usage and breast feeding in the neonate. Pediatr Res. 1999;45:67A. Abstract 385.
3. Board JA, Fierro RJ, Wasserman AJ et al. Effects of alpha- and beta-adrenergic blocking agents on serum prolactin levels in women with hyperprolactinemia and galactorrhea. Am J Obstet Gynecol. 1977;127:285-7. PMID: 556882
CAS Registry Number
LactMed Record Number
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- Drug class: non-cardioselective beta blockers