Daptomycin use while Breastfeeding
Drugs containing Daptomycin: Cubicin, Cubicin RF
Medically reviewed on March 1, 2018.
Daptomycin Levels and Effects while Breastfeeding
Summary of Use during Lactation
Limited and somewhat inconsistent information indicates that daptomycin produces very low levels in milk and it would not be expected to cause any adverse effects in breastfed infants. No special precautions are required.
Maternal Levels. A nursing mother received intravenous daptomycin 500 mg (6.7 mg/kg) and ertapenem 1 gram once daily for 28 days to treat a pelvic infection. On day 27 of therapy, expressed breastmilk was collected over six 4-hour intervals. Daptomycin milk concentrations were highest in the second sample with a concentration of 44.7 mcg/L. The fifth sample, ending at 20 hours after the dose, contained 29.2 mcg/L of daptomycin and the final sample had no detectable drug (<25 mcg/L). Using the average maximum milk level, the infant would receive a weight-adjusted dosage of 0.1% of the maternal dosage.
A woman nursing a newborn was given daptomycin 500 mg (7.4 mg/kg) intravenously once daily for 14 days for a soft tissue infection. Hindmilk samples were taken during the last 4 days of therapy and for 2 days after the last dose. Trough daptomycin levels taken during therapy averaged 208 mcg/L. Levels of about 270 mcg/L were found at 6 and 12 hours after one of the doses. After the last dose, milk levels dropped from 330 mcg/L to 121 mcg/L over a period of 42 hours. Using the median milk level, the infant would receive a weight-adjusted dosage of 0.5% of the maternal dosage.
Infant Levels. Relevant published information was not found as of the revision date.
Effects in Breastfed Infants
A mother nursing (extent not stated) a 5-month-old infant received intravenous daptomycin 500 mg and ertapenem 1 gram once daily for 28 days to treat a pelvic infection. No adverse events were noted in the infant during the treatment or follow-up examination.
A woman nursing a newborn was given daptomycin 500 mg intravenously once daily for 14 days. No adverse effects were noted in the infant during therapy and for 7 days after the end of therapy.
Effects on Lactation and Breastmilk
Relevant published information was not found as of the revision date.
Alternate Drugs to Consider
1. Buitrago MI, Crompton JA, Bertolami S et al. Extremely low excretion of daptomycin into breast milk of a nursing mother with methicillin-resistant Staphylococcus aureus pelvic inflammatory disease. Pharmacotherapy. 2009;29:347-51. PMID: 19249952
2. Cesari E, Roda G, Visconti GL et al. Daptomycin excretion into human milk. Br J Clin Pharmacol. 2018;84:394-5. PMID: 29172024
CAS Registry Number
LactMed Record Number
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.
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
More about daptomycin
- Daptomycin Side Effects
- During Pregnancy or Breastfeeding
- Dosage Information
- Drug Interactions
- Support Group
- Pricing & Coupons
- En Español
- 1 Review – Add your own review/rating
- Drug class: miscellaneous antibiotics