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Drugs and Lactation Database (LactMed) [Internet]. Bethesda (MD): National Library of Medicine (US); 2006-.
CASRN: 571190-30-2
Drug Levels and Effects
Summary of Use during Lactation
No information is available on the clinical use of palbociclib during breastfeeding. Because palbociclib is 85% bound to plasma proteins, the amount in milk is likely to be low. However, its half-life is about 29 hours and it might accumulate in the infant. It is also given in combination with letrozole or fulvestrant, which may increase the risk to the infant. The manufacturer recommends that breastfeeding be discontinued during palbociclib therapy and for 3 weeks after the last dose.
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.
Effects on Lactation and Breastmilk
Relevant published information was not found as of the revision date.
Substance Identification
Substance Name
Palbociclib
CAS Registry Number
571190-30-2
Drug Class
- Breast Feeding
- Antineoplastic Agents
- Enzyme Inhibitors
- Protein Kinase Inhibitors
- Signal Transduction Inhibitors
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.
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- Palbociclib - Drugs and Lactation Database (LactMed)Palbociclib - Drugs and Lactation Database (LactMed)
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